About
Marty O'Brien is an American bassist. He plays professionally for live touring musical acts, recording sessions, television, and film scores all of which encompass a range of genres such as pop and rock, thereby collaborating with various musical artists. O'Brien's discography is generally diverse yet also maintains a notable background and standing in the hard rock and metal music genres.
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O'Brien's live credits include tours with bands such as Disturbed, Tommy Lee, Static-X, Methods of Mayhem, Lita Ford, Daughtry, and Steven Adler, among others. He has performed on three different Ozzfest tours, each time with a different band (Ozzfest's 1998, 2000, 2002). Also a busy session-bassist, most of this work taking place in his current home base of Los Angeles, O'Brien has recorded with numerous artists such as Celine Dion, Chris Cornell, Brian McKnight, Tommy Lee, Jason C. Miller, Lindsay Lohan, Gus G., Lita Ford, and Kelly Clarkson.
Member of
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Kilgore electric bass guitar
Links
Official
Instrumental supporting musician
Also known as
Marty O'Brian
Identifiers
- MusicBrainz
- fa8b6eba-0ffd-4cb5-aaa3-a80ca2c6b74d
Data from MusicBrainz, saved 7 Nov 2026. Photo from Wikimedia Commons, covers from the Cover Art Archive and Apple Music.