Michael Edward Mills (born December 17, 1958) is an American multi-instrumentalist, singer, and composer who was a founding member of the alternative rock band R.E.M. Though known primarily as the bass guitarist and backing vocalist of R.E.M., his musical repertoire also includes keyboards and occasional lead vocals. He contributed to a majority of the band's musical compositions and is the only member to have had formal musical training. Description above from the Wikipedia article Mike Mills, licensed under CC-BY-SA, full list of contributors on Wikipedia.
R.E.M.: Live at The Capitol Theater
Slacker Uprising
(Self)
R.E.M. Tourfilm
(Himself)
R.E.M.: Road Movie
R.E.M. - This Film Is On
(Himself)
R.E.M. Live
(Self)
Left of Reckoning
Athens, GA Inside/Out
(Himself)
Finster
R.E.M.: Succumbs
(Mike Mills)
R.E.M. Live
(Bass/Keyboards)
R.E.M. By MTV
(Himself)
MTV's 10th Anniversary Special
(Self)
R.E.M.: Parallel
(Himself)
R.E.M. : Perfect Square
(Bass)
R.E.M. - Live from Glastonbury Festival
(Himself)
R.E.M. - Out Of Time
(Bass)
6 Days
Paradise Garden: Howard Finster's Legacy
(Self)
R.E.M. - Automatic Unearthed
R.E.M. at the BBC
(Self/Performer)
R.E.M.
(Himself)
R.E.M. - Falls to Climb
(Himself)
R.E.M. Unplugged: The Complete 1991 and 2001 Sessions
R.E.M.: Rough Cut
(Himself)
R.E.M.: When the Light is Mine
R.E.M. - Monster
(Himself)
R.E.M. Live from Austin, TX
R.E.M.: Pop Screen
R.E.M.: A Stirling Performance
(Himself)
Chuck Leavell: The Tree Man
(Self)
R.E.M.: This Way Up
(Himself)
R.E.M. Unplugged
R.E.M. at Rockpalast
R.E.M.: Glastonbury 1999
(Himself)
Weirdo: The Story of Five Eight
(Himself)
REM: MTV Unplugged
Does Anyone Care What Anyone Says In Rock’n’Roll?
(Self)
Boston Public
(Self)
The Simpsons
(Mike Mills (voice))
The Colbert Report
(Self)
MTV Unplugged
(Self)
Austin City Limits
(Self)
MTV Video Music Awards
(Self)
Saturday Night Live
(Self - Musical Guest)
Seven Ages of Rock
(Self)
Parkinson
(Self)