Jack White's most ear-grabbing outburst since the end of the White Stripes ain't punk blues. But it's some kinda blues, one of two leaks — Norah Jones' Nancy Sinatra-ish "Black" is the other — from Danger Mouse's latest fantasy, a spaghetti-Western song cycle with composer Daniele Luppi. "The mirror is a trigger, and your mouth's a gun," White sings over haunted Ennio Morricone-style backing vocals, spinning couplets about a mercenary character in a heroic battle with his own self-loathing. The Stripes will be missed. But this bodes well for both White and Danger Mouse, who is clearly gunning for the "Most Supergroups" entry in Guinness World Records.

Listen to "Two Against One":

Gallery: Random Notes, Rock's Hottest Photos

“Oh Sherrie”

Steve Perry's girlfriend Sherrie Swafford was actually in the studio when Perry began writing this song--his lone Top Ten hit as a solo act--with two co-writers. The trio began at midnight one night with just "Oh, Sherrie!" and "hold on, hold on." Three hours later, they had a complete song. Swafford, however, had to wait until the next day to hear it. "Sherrie actually got tired and went to bed," Perry said. She also appeared in the video, but their relationship did not hold on for long.