As Steve Jobs concluded a music-heavy list of Apple product announcements yesterday in San Francisco, he introduced a surprise guest, Coldplay's Chris Martin, who took to the stage with a piano and unveiled a new song, "Wedding Bells."

While My Morning Jacket became one of the biggest rock acts in America over the past five years, guitarist Carl Broemel was casually tinkering away on his own material, an unfussy but elegant collection of mellow, acoustic-led Southern rock, with a touch of Nick Drake-esque whimsy.

Meet super-producer Mark Ronson's alter-ego: a pompadour-sporting French b-boy whose mission is to protect bicycles from the thieves of the world. Get introduced in the video below!

Covers of rock classics like Led Zeppelin's "Stairway to Heaven." Massive 20,000-person sing alongs. Pyro, confetti, and a beer-guzzling Drunk Bunny: Green Day's summer tour is a total blowout.

Eddie Vedder, Johnny Depp, and Patti Smith rocked for justice Saturday night in Little Rock, Arkansas. Watch video below.

For indie rapper El-P, album artwork is as essential as the recording itself, especially on his new, mostly-instrumental mixtape Weareallgoingtoburninhell-megamixxx3, which features the graphic design of comic book artist Travis Millard.