佐藤優樹 (Sato Masaki) is a Japanese pop singer. She is a former idol under Hello! Project as a 10th generation member of Morning Musume., as well a former member of the SATOYAMA movement units Harvest, Jurin, and Sato no Akari. She graduated from both Morning Musume. and Hello! Project on December 13, 2021 due to health issues. As of April 2022, she is part of the M-line club.
Morning Musume.'21 DVD Magazine Vol.136
Morning Musume.'21 DVD Magazine Vol.137
Sato Masaki ~prism~
Morning Musume.'21 Kessei Kinen FC Event ~Musume×FAN×Fun!~
Morning Musume.'21 Ishida Ayumi & Sato Masaki FC Event ~Hiyoko ga 10nen Tattara, saa Nani ni Naru?~ "Maa Birthday Yattenai yo. Semete Ishou dake Kisasete!" "Iya, Title Nagai yo!"
Morning Musume.'21 DVD Magazine Vol.138
Morning Musume.'21 2021 Autumn Teenage Solution ~Sato Masaki Sotsugyou Special~
Sato Masaki Birthday Event 2023 ~Emerald planet~
Morning Musume. Best Selection ~The 25th Shuunen~
Morning Musume.'14 FC Event ~Premoni~
Morning Musume.'20 FC Event ~Premoni. Christmas Kai~
Sato Masaki on Morning Musume.'21 2021 Autumn Teenage Solution ~Sato Masaki Graduation Special~
Morning Musume. 9・10ki 10th Anniversary BOOK
Hello! Channel Vol.12 ~Tanaka Reina Sotsugyou Special!~
Hello! Channel Vol.10 ~Tabi wo Shichaimashita! Special~
Hello! Channel Vol.11 ~2013nen Shinshun Tokudaigou Mano Erina Sotsugyou Special!~
Hello! Channel Vol.8
Hello! Channel Vol.9
Morning Musume '18 Concert Tour Aki ~GET SET, GO!~ Final Iikubo Haruna Sotsugyou Special
COVERS -One on One-
Tanaka Reina Birthday Event ~OtsukaReina Kai 2 ~Minna Hisashiburi~!~
Alo-Hello! 7 ~Morning Musume.~
Alo-Hello! Morning Musume. Shashinshuu 2012
Alo-Hello! Morning Musume.'14 Shashinshuu
Morning Musume. ANNEX Event ~Iwai・Nyuugakushiki~
Alo-Hello! 6 ~Morning Musume.~
Morning Musume. 10ki Member Event ~Iwai・Ashita de 1 Shuunen! 11ki Member ga Haittekuru Mae ni Watashitachi Ganbaranai to!!~
Morning Musume. 9・10ki 1st Official Photobook
Morning Musume.'15 FC Event ~13nin Gakari no Christmas~
Morning Musume. 10ki Member Ohirome Event
Alo-Hello! Morning Musume. 9・10ki
Dream Morning Musume. Special LIVE 2012 Nippon Budokan ~Dai Isshou Shuumaku "Yuusha Tachi, Shuugou Seyo"~
Mosuma. FC Event ~Gachi☆Kira~
Hello! Project 2013 COUNTDOWN PARTY 2013-2014 ~GOODBYE & HELLO!~
Hello! Project 2013 Spring Yaon Premium LIVE ~Soto Fes~
Hello! Project 2013 Summer COOL HELLO! ~Mazekooze!~
Hello! Project 2013 Spring Haru no Dai Kansha Hinamatsuri Festival 2013 ~Berryz Koubou 10 Nenme Totsunyuu Special!~
Hello! Project 2013 Summer COOL HELLO! ~Sorezoore!~
Hello! Project 2015 Summer ~CHALLENGER~
Hello! Project 2015 Winter ~DANCE MODE!~
Hello! Project 2011 Autumn Hello! Project ☆ Festival 2011 ~MOBEKIMASU~
Hello! Project 2016 Hina Fes ~℃-ute Premium~
Hello! Project 2016 Hina Fes ~Morning Musume.'16 Premium~
Hello! Project 2017 COUNTDOWN PARTY 2017-2018 ~GOODBYE & HELLO!~ Hello! Project 20th Anniversary!!
Hello! Project 2016 Summer ~Rainbow Carnival~
Hello! Project 2016 Winter ~DANCING! SINGING! EXCITING!~
Hello! Project 2016 Summer ~Sunshine Parade~
Hello! Project 2017 Hina Fes ~Morning Musume.'17 Premium~
Hello! Project 2017 Hina Fes ~℃-ute Premium~
Hello! Project 2017 Summer ~HELLO! GATHERING~
Hello! Project 2017 Summer ~HELLO! MEETING~
Hello! Project 2013 Winter Tanjou 15 Shuunen Kinen Live 2013 Fuyu ~VIVA!~
Hello! Project 2013 Winter Tanjou 15 Shuunen Kinen Live 2013 Fuyu ~BRAVO!~
Hello! Project 2012 Summer Tanjou 15 Shuunen Kinen Live 2012 Natsu ~Ktkr (Kitakore) Natsu no Fan Matsuri!~
Hello! Project 2012 Summer Tanjou 15 Shuunen Kinen Live 2012 Natsu ~Wkwk (Wakuwaku) Natsu no FAN Matsuri!~
Hello! Project 2012 Winter Hello☆Pro Tengoku ~Funky-chan~
Hello! Project 2014 COUNTDOWN PARTY 2014-2015 ~GOODBYE & HELLO!~
Hello! Project 2012 Winter Hello☆Pro Tengoku ~Rock-chan~
Hello! Project 2015 COUNTDOWN PARTY 2015-2016 ~GOODBYE & HELLO!~
Hello! Project 2013 Spring Haru no Dai Kansha Hinamatsuri Festival 2013 ~Thank You For Your Love!~
Hello! Project 2018 Winter ~PERFECT SCORE~ Hello! Project 20th Anniversary!!
Hello! Project 2019 Winter ~NEW AGE~ Hello! Project 20th Anniversary!!
Hello! Project 2019 Winter ~YOU & I~ Hello! Project 20th Anniversary!!
Hello! Project 2018 Winter ~FULL SCORE~ Hello! Project 20th Anniversary!!
Hello Pro All Stars 2018 Single Hatsubai Kinen Event ~Team Taikou Uta Gassen~
Hello! Project 2018 COUNTDOWN PARTY 2018-2019 ~GOODBYE & HELLO!~ Hello! Project 20th Anniversary!!
Hello! Project 2018 Haro! Fes Hello! Project 20th Anniversary!!
Hello! Project 2014 Summer ~KOREZO!~
Hello! Project 2014 Hina Fes ~Full Course~ Main Dish wa Morning Musume.'14 Desu.
Hello! Project 2014 Summer ~YAPPARI!~
Hello! Project 2014 Winter ~GOiSU MODE~
Hello! Project 2014 Winter ~DE-HA MiX~
Hello! Project 2015 Hina Fes ~Mankai! The Girls' Festival~ ℃-ute Premium
Hello! Project 2015 Hina Fes ~Mankai! The Girls' Festival~ ANGERME & Juice=Juice Premium
Hello! Project 2015 Hina Fes ~Mankai! The Girls' Festival~ Morning Musume.'15 Premium
Hawaii FC Tour 2012 ~Morning Musume.~
Hawaii FC Tour 2014 ~Morning Musume.'14~
Hello Pro! TIME Vol.5
Hello! Project DVD Magazine Vol.53
Hello! Project DVD Magazine Vol.55
Hello! Project DVD Magazine Vol.52
Hello! Project 2015 Summer ~DISCOVERY~
Hello! Project DVD Magazine Vol.48
Hello! Project DVD Magazine Vol.56
Hello! Project DVD Magazine Vol.58
Hello! Project FC Event 2014 ~Hello! Xmas Days2♥~ Morning Musume.'14
Hello! Project FC Event 2013 ~Hello! Xmas Days♥~ Morning Musume.
Hello! Project 2018 Hina Fes ~Hello! Project 20th Anniversary!! Premium~
Hello! Project 2018 Summer ~ALL FOR ONE~ Hello! Project 20th Anniversary!!
Hello! Project 2018 Summer ~ONE FOR ALL~ Hello! Project 20th Anniversary!!
Hello! Project 2018 Hina Fes ~Morning Musume.'18 Premium~
Hello! Project 2018 Summer ~OG Corner 2~ Hello! Project 20th Anniversary!!
Morning Musume.'14 Ishida Ayumi Birthday Event
Kudo Haruka Birthday Event ~Chuugakusei NIGHT!!~
LILIUM -Lilium Shoujo Junketsu Kageki- ~The Musical~
Kudo Haruka ~HARUKA~
Michishige Camera Tokubetsu hen
Morning Musume. 2011 Autumn Ai BELIEVE ~Takahashi Ai Sotsugyou Kinen Special~
Morning Musume. 2013 Autumn ~CHANCE!~
Morning Musume. 2012 Spring ~Ultra Smart~ Niigaki Risa & Mitsui Aika Sotsugyou Special
Morning Musume. 2012 Autumn Tanjou 15 Shuunen Kinen ~Colorful Character~
Best! Morning Musume. 20th Anniversary
Morning Musume. 2012 Spring Solo Sato Masaki ~Ultra Smart~ Niigaki Risa & Mitsui Aika Sotsugyou Special
Morning Musume. 2013 Spring Solo Sato Masaki Michishige☆Eleven SOUL ~Tanaka Reina Sotsugyou Kinen Special~
Morning Musume. 2013 Spring Michishige☆Eleven SOUL ~Tanaka Reina Sotsugyou Kinen Special~
Morning Musume.'16 2016 Spring ~EMOTION IN MOTION~ Suzuki Kanon Sotsugyou Special
Morning Musume.'15 2015 Autumn ~PRISM~
Morning Musume.'15 2015 Spring ~GRADATION~
Morning Musume.'14 2014 Spring ~EVOLUTION~
Morning Musume.'16 2016 Autumn ~MY VISION~
Morning Musume.'17 2017 Spring ~THE INSPIRATION!~
Morning Musume.'16 Houston Documentary
Morning Musume.'16 Taipei Documentary
Morning Musume.'17 Live Concert in Hong Kong
Morning Musume.'19 Dinner Show "Happy Night" Hello! Project 20th Anniversary!!
Morning Musume.'18 Live Concert in Mexico City
Morning Musume.'18 Mexico City & NYC Documentary
Morning Musume.'18 2018 Autumn ~GET SET, GO!~ Final Iikubo Haruna Sotsugyou Special
Morning Musume.'16 Live Concert in Houston
Morning Musume.'16 Live Concert in Taipei
Morning Musume.'17 Hong Kong Documentary
Morning Musume.'18 2018 Spring Tanjou 20 Shuunen Kinen ~We are MORNING MUSUME.~ Final Ogata Haruna Sotsugyou Special
Morning Days Happy Holiday 10ki Member Iikubo Haruna・Ishida Ayumi・Sato Masaki・Kudo Haruka FC Tour in Yamanashi
Morning Musume.'14 & S/mileage DVD Magazine Vol.1
Morning Musume.'17 2017 Autumn Tanjou 20 Shuunen Kinen ~We are MORNING MUSUME.~ Kudo Haruka Sotsugyou Special
Morning Musume.'14 Live Concert in New York
Morning Musume.'14 2014 Autumn GIVE ME MORE LOVE ~Michishige Sayumi Sotsugyou Kinen Special~
Morning Musume.'14 Special Event in Shinagawa
Morning Musume. 15th Anniversary Photobook ZERO
Morning Musume.'14 DVD Magazine Vol.59
Morning Musume.'15 DVD Magazine Vol.74
Morning Musume.'15 DVD Magazine Vol.75
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Morning Musume. DVD Magazine Vol.41
Morning Musume. DVD Magazine Vol.51
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Morning Musume. DVD Magazine Vol.49
Morning Musume. DVD Magazine Vol.56
Morning Musume.'16 DVD Magazine Vol.82
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Morning Musume. DVD Magazine Vol.45
Morning Musume.'15 DVD Magazine Vol.72
Morning Musume. DVD Magazine Vol.48
Morning Musume.'14 DVD Magazine Vol.66
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Morning Musume.'16 DVD Magazine Vol.81
Morning Musume. DVD Magazine Vol.54
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Morning Musume.'14 DVD Magazine Vol.58
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Morning Musume. DVD Magazine Vol.44
Morning Musume. DVD Magazine Vol.57
Morning Musume.'16 DVD Magazine Vol.80
Morning Musume.'16 DVD Magazine Vol.86
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Morning Musume.'15 DVD Magazine Vol.78
Morning Musume. DVD Magazine Vol.46
Morning Musume. DVD Magazine Vol.47
Morning Musume.'16 DVD Magazine Vol.85
Morning Musume. DVD Magazine Vol.55
Morning Musume. DVD Magazine Vol.53
Morning Musume.'16 DVD Magazine Vol.89
Stacies Shoujo Saisatsu Kageki ~The Musical~
Morning Musume. 2013 Spring Live Photobook Michishige☆Eleven SOUL ~Tanaka Reina Sotsugyou Kinen Special~
TRIANGLE ~The Musical~
Morning Musume.'16 DVD Magazine Vol.84
Morning Musume.'16 DVD Magazine Vol.87
Eizouza・Morning Musume. 7 ~Single M Clips~
Morning Musume.'16 DVD Magazine Vol.88
Eizouza・Morning Musume. 8 ~Single M Clips~
Morning Musume.'17 DVD Magazine Vol.92
Morning Musume.'17 DVD Magazine Vol.97
Morning Musume.'17 DVD Magazine Vol.99
Morning Musume.'17 DVD Magazine Vol.95
Morning Musume.'17 DVD Magazine Vol.101
Morning Musume.'18 DVD Magazine Vol.106
Morning Musume.'18 DVD Magazine Vol.114
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Morning Musume.'18 DVD Magazine Vol.110
Morning Musume.'18 DVD Magazine Vol.108
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Morning Musume.'18 DVD Magazine Vol.109
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Morning Musume.'17 DVD Magazine Vol.98
Morning Musume.'17 DVD Magazine Vol.105
Morning Musume.'19 DVD Magazine Vol.118
Morning Musume.'19 DVD Magazine Vol.116
Pharaoh no Haka ~The Musical~
Morning Musume.'18 DVD Magazine Vol.115
Morning Musume.'18 FC Event ~Play Moni. Christmas Kai~
Morning Musume.'19 DVD Magazine Vol.117
Morning Musume. Tanjou 16 Shuunen Kinen Event "Watashitachi ga, Ima no Morning Musume. desu. 17 Nenme mo, Saa, Ikou ka."
BS-TBS Kaikyoku 15 Shuunen Tokubetsu Kikaku COOL JAPAN ~DOU~ Best Fifteen ~Morning Musume.'15 Hen~
Morning Musume.'17 Christmas FC Event ~Play Moni. 2~
Morning Musume.'18 FC Event ~Kessei Kinen Play Moni. Dai Kanshasai! 22 Nenme mo Ikimasshoi!~
Sato Masaki ~Greeting~
Sato Masaki ~Sankaku no Glass~
Morning Musume. 9ki Member Event ~Iwai Tanjoubi! Kanpai wa, Shuwa Shuwa Pon! HyaaHo~i! ♪( ´θ`)ノ~ / Morning Musume. 10ki Member Event ~Iwai Tanjoubi \(^O^)/ Konya no Shuyaku wa... Maa-chan!~
Sayashi Riho Birthday Event ~Sayashi no Koto, Itsu Iwau no? Ima Desho!!~ / Sato Masaki Birthday Event ~14 sai nau nauuuu!!~
Morning Musume.'15 Sato Masaki Birthday Event
Morning Musume.'16 Sato Masaki Birthday Event
Morning Musume.'14 Sato Masaki Birthday Event
Morning Musume.'17 Sato Masaki Birthday Event
Morning Musume.'16 Sato Masaki Birthday DVD
Morning Musume.'18 Sato Masaki Birthday Event
Hello! Project 2015 Winter ~HAPPY EMOTION!~
Hello! Project 2017 Hina Fes ~ANGERME & Juice=Juice Premium~
Hello! Project 2017 Hina Fes ~Tsugunaga Momoko Premium~
Hello! Project 2018 Hina Fes ~ANGERME & Juice=Juice Premium~
Hello! Project 2018 Hina Fes ~Morning Musume. 20th Anniversary!! Premium~
Morning Musume.'14 2014 Spring Solo Sato Masaki ~EVOLUTION~
Morning Musume. 2013 Autumn Solo Sato Masaki ~CHANCE!~
Morning Musume. 2012 Autumn Solo Sato Masaki Tanjou 15 Shuunen Kinen ~Colorful Character~
Hello! Project DVD Magazine Vol.29
Hello! Project DVD Magazine Vol.28
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Hello! Project DVD Magazine Vol.31
Hello! Project DVD Magazine Vol.32
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Hello! Project DVD Magazine Vol.34
Hello! Project DVD Magazine Vol.36
Morning Musume.'19 FC Event ~Play Moni Christmas Kai~
Hello! Project 2019 Hina Fes ~Juice=Juice Premium~
Hello! Project 2019 Hina Fes ~Hello! Project 20th Anniversary!! Premium~
Hello! Project 2019 Summer "harmony"
Hello! Project 2019 Summer 'beautiful'
Hello! Project 2019 Hina Fes ~Morning Musume.'19 Premium~
Hello! Project 2019 Hina Fes ~ANGERME Premium~
Morning Musume.'19 DVD Magazine Vol.121
Hello! Project DVD Magazine Vol.39
Morning Musume.'19 DVD Magazine Vol.124
Morning Musume.'19 DVD Magazine Vol.123
Morning Musume.'20 DVD Magazine Vol.127
Hello! Project DVD Magazine Vol.38
Morning Musume.'20 DVD Magazine Vol.125
Morning Musume.'19 DVD Magazine Vol.120
Morning Musume.'19 DVD Magazine Vol.119
Morning Musume.'19 DVD Magazine Vol.122
Morning Musume.'20 DVD Magazine Vol.126
Hello! Project DVD Magazine Vol.37
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Hello! Project DVD Magazine Vol.41
Hello! Project DVD Magazine Vol.40
Hello! Project DVD Magazine Vol.43
Hello! Project DVD Magazine Vol.44
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Hello! Project DVD Magazine Vol.51
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Hello! Project DVD Magazine Vol.46
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Hello! Project DVD Magazine Vol.59
Hello! Project DVD Magazine Vol.57
Hello! Project DVD Magazine Vol.60
Hello! Project DVD Magazine Vol.61
Hello! Project DVD Magazine Vol.54
Hello! Project DVD Magazine Vol.62
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Hello! Project DVD Magazine Vol.64
Hello! Project DVD Magazine Vol.65
Petit Best 13
Petit Best 15
Petit Best 14
Petit Best 16
Petit Best 17
Petit Best 19
Petit Best 18
Petit Best 20 2020
Morning Musume.'19 2019 Autumn 〜ROCK IN JAPAN FESTIVAL 2019〜
Hello! Project Visual Commentary ~Member Osusume Live Eizou~ ②
Morning Musume.'20 DVD Magazine Vol.130
Morning Musume.'20 DVD Magazine Vol.128
Hello! Project DVD Magazine Vol.66
Hello! Project DVD Magazine Vol.67
Morning Musume.'20 DVD Magazine Vol.129
Hello! Project 2020 Hina Fes ~Morning Musume.'20 Premium~
Hello! Project 2020 Winter ~HELLO! PROJECT IS [ ]~
Morning Musume.'19 2019 Spring ~BEST WISHES!~ FINAL
Hello! Project 2019 COUNTDOWN PARTY 2019-2020 ~GOODBYE & HELLO!~
Morning Musume.'19 2019 Autumn ~KOKORO&KARADA~ FINAL
Hello! Project 2020 Hina Fes ~ANGERME Premium~
S/mileage 2014 Summer LIVE FULL CHARGE ~715 Nippon Budokan~
SATOYAMA movement MUSIC VIDEO CLIPS
Hello! Channel Vol.7
Morning Musume.'20 Sato Masaki Birthday Event
Suzuki Kanon Birthday Event ~Oto no Kaori Yuku 15sai~
Morning Musume. FC Event 2013 ~Morning Labo! Ⅳ~
Morning Musume.'19 Sato Masaki Birthday Event
Morning Musume. FC Event 2012 ~Morning Labo! Ⅲ~
Hello! Project DVD Magazine Vol.69
Eizouza・Morning Musume. 9 ~Single M Clips~
Morning Musume.'20 DVD Magazine Vol.131
Hello! Project presents... "Solo Fes!"
BS-TBS Summer Party 2012 Onna Nihonbuyo (Japanese Idol Style)
Morning Musume.'21 16th ~That's J-POP~
Hello! Project presents... "premier seat" ~Morning Musume.'21 Premium~
Hello! Project 2020 ~The Ballad~ Special Number
Morning Musume.'21 DVD Magazine Vol.135
Hello! Project presents... "premier seat" ~Hello! Project Premium~
Hello! Project 2020 COVERS ~The Ballad Best Selection~
Hello! Project 2020 Year-End Party ~GOODBYE & HELLO!~
Hello! Project DVD Magazine Vol.70
Hello! Project 2021 Winter ~STEP BY STEP~
Suugaku ♥ Joshi Gakuen
Shitemiru Terebi! Kyoukun no Susume
Hello Pro! TIME
Sakigake! Ongaku no Jikan
Tokugi☆Saikenshou Momusu.'17 DE Gozaru!
Morning Musume. 20th Anniversary Commemoration Special
P-sma
MUSIC DRAGON
Mecha-Mecha Iketeru!
HEY!HEY!HEY! MUSIC CHAMP
The Big Chance - Yume no Creator Audition
Agepoyo TV
Mujack
Shabekuri 007
Ustream Musume
Nakai Masahiro no Black Variety
Ahoyanen! Sukiyanen!
Shinshun Gouka Dokkiri