Juliette Lewis Rocks Out: "F**k You Motherf**ker!

3/27/2007 12:40 PM PDT

Juliette Lewis Rocks Out: "F**k You Motherf**ker!

She might be an Oscar-nominated actress, but Juliette Lewis is one bad motherf**ker with a mic in her hand.

Lewis took over the stage at the Key Club in Hollywood last night, during an impromptu performance with legendary 80s cover band, Metal Skool. After pumping up the crowd with an obscenity-laced tirade that would have made even Courtney Love blush, Lewis, clad in her finest rock of the 80s gear, busted out a kick-ass rendition of Van Halen's 'Ain't Talkin' 'Bout Love.'

After the jam session, Lewis threw a couple of David Lee Roth-style front kicks, and told the screaming crowd, "You know this s**t motherf**ker!"

Lewis' rock band, Juliette and the Licks, has played gigs all over the world and has opened for Foo Fighters.