Seriously, what's left for Dave Grohl to do in the world of rock 'n' roll? After playing in tiny, dilapidated clubs with hardcore punk act Scream in the late 1980s, he kicked off the '90s by drumming for one of the decade's most influential groups, Nirvana. Then, in the mid-'90s, Grohl formed his current band, the platinum-selling Foo Fighters.

With the Foos spending the last decade touring incessantly and releasing five studio albums, you'd guess he'd have had little trouble keeping occupied. Think again. Having done punk and alternative, the prolific Grohl embraced metal with his Probot side-project in 2004 and added stoner rock and post-punk to his resume during brief stints with Queens of The Stone Age in 2002 and Killing Joke in 2003. He's also collaborated with the likes of Black Sabbath's Tony Iommi, David Bowie, Tenacious D, Nine Inch Nails, Cat Power, and the remaining members of Queen, giving his life a little more classic-rock flair.

That '70s influence may have rubbed off on the Foos as they put out a double album, "In Your Honor," in 2005. Comprised of an electric and acoustic disc, during their subsequent tour, including a headlining slot at 2005's Fuji Rock, the band focused on harder tracks. This past summer they embarked on a round of acoustic dates in theaters across North America. Their new live CD and DVD, "Skin And Bones," document their Los Angeles performances and feature several cuts from "In Your Honor," along with a handful of their trademark, ultra-catchy singles and the Nirvana B-side "Marigold." Grohl and co. recently wrapped up another round of acoustic gigs in support of Bob Dylan, and should be showcasing both their loud and quiet sides during their upcoming Japanese tour.