In Los Angeles, Jason was one of the founding members of New Dead Radio, and punk rock super group Black President, with guitarists Greg Hetson, Charlie Paulson, singer Christian Martucci, and drummer Roy Mayorga.
Christopher played bass during 2011 for the band Stone Sour, including the band's Avalanche tour and their appearance at Rock In Rio. Christopher is also the backing acoustic guitar player and singer for Corey Taylor (lead singer for Slipknot and Stone Sour) and the bass player for his solo band. He played bass on one track of Taylor's Ronnie James Dio: This Is Your Life tribute album.
Christopher toured with Sebastian Bach from 2012 to 2014, joining them at Rock in Rio 2013. He also performed on their DVD Abacholypse Now. Christopher has also played with Dave Navarro, Jerry Cantrell, Scott Ian, Ace Frehley, and Dave Lombardo.
- SEBASTIAN BACH Hires STONE SOUR Bassist Jason Christopher
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- "PRONG Live In Dublin, Ireland" By Larry Petro, News Monkey,Friday, August 8, 2014 via KNAC
- "Slipknot's Corey Taylor Sings Ronnie James Dio's 'Rainbow in the Dark'". Rolling Stone
- "Skid Row Bass Player Records With Stone Sour". Gibson.com. Peter Hodgson June 4, 2012