Brian Aubrey Marshall is an American musician, songwriter, and real estate agent best known as the bassist and co-founder of the rock bands Creed and Alter Bridge. Description above from the Wikipedia article Brian Marshall, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Alter Bridge - Live in Köln Palladium 2016
(Himself)
Alter Bridge - Rock Am Ring 2017
(Himself)
Creed: Live
(Bass)
Alter Bridge: Live at Wembley
(Bass)
Alter Bridge - Live at the Royal Albert Hall (featuring The Parallax Orchestra)
(Himself)
Alter Bridge - Live from Amsterdam
Creed: Greatest Hits
Alter Bridge: Live at the House of Blues 2016
(Himself)
Where's Roman?
(Background Ensemble - Bar Scene)