Photo SpecialRock On: Secret Celebrity Musicians!
Anne Hathaway! Halle Berry! Johnny Depp! See which Hollywood stars moonlight as musicians
More from PEOPLE
JASON SCHWARTZMAN
The Bored to Death star not only composed the theme song for his HBO comedy, but he also manned the drums for L.A. rock band Phantom Planet – the alt-rockers behind The O.C.'s catchy "California" theme song.
