While the White Stripes/Raconteurs/Dead Weather front man's role in this 2003 Civil War drama is a bit more than a cameo, his performance is surely worthy of mention. White played Georgia, a mandolin player and love interest of Renée Zellweger's character Ruby. While he may be known for his rock and roll eccentricities, White impressed audiences with his natural onscreen ability, and also contributed five songs to the film's Americana-roots soundtrack. But Cold Mountain wasn't White's big-screen debut; the rocking Renaissance man had an uncredited cameo in 1987 neo-noir mystery The Rosary Murders, starring Donald Sutherland. White, then only 12, played an altar boy.

Thanks to shock-rocker and 2011 Rock & Roll Hall of Fame inductee Alice Cooper's hilarious cameo in Wayne's World, we learned that a) he's not that scary backstage, and is in fact quite eloquent and polite, and b) Milwaukee is pronounced "Mill-e-wah-que," which is Algonquin for "the good land." What a fantastically hilarious cameo this mapped out to be. Hey Alice - we're not worthy.

If the Red Hot Chili Peppers ever disband, Flea certainly has a professional safety net in movie cameos. The funky RHCP bassist has had bit parts in numerous movies since the early '90s, including The Big Lebowski, Gus Van Sant's timid Psycho remake, and 1994's The Chase (with RHCP front man Anthony Kiedis, as monster-truck drivers). While Flea is widely known for his musicianship and shirtlessness, he's simultaneously painted himself a minor league silver screen actor as well, making him not only perhaps the hardest-working man in music, but also our No. 1 choice for favorite musician cameo.