Played guitar for the hip-hop group The Roots before he joined Incubus in 2003 after the departure of bassist and founding member Alex Katunich aka Dirk Lance.
Has released five solo albums: "26", (2004); "Maduro" (2006), "Distance and Comfort" (2008), "Burn the Tapes" (2011) and "Leave On Your Makeup" (2013). All of them were composed, played, sung and recorded entirely by him.
He also plays in psychedelic jazz band Time Lapse Consortium, with other Incubus members Mike Einziger and Jose Pasillas, and two more musicians: Neal Evans and Chiaki Kuriyama.