Waylon Jennings' health was failing when he recorded basic tracks for a new LP; per the country legend's request, his bandmates have finally completed the album, 10 years after his death. It's a rowdier version of his pal Johnny Cash's American Recordings – raw songs delivered in a weary but still magnificent baritone. On "I Do Believe," a dying man reckons with "a faith that's never been that strong." And on "Belle of the Ball," Jennings sings of a has-been "dreamer, rhymer and singer of songs" who, saved by love, goes out a winner, a dignified badass to the very end.

Listen to 'Goin' Down Rockin'':

“I'm Yours”

Jason Mraz re-emerged after his disappointing second album with this lead single, a Jack Johnson-esque ditty about giving yourself fully to someone else. The success of the reggae-tinged song (it earned two Grammy nods and a spot on the Billboard singles chart for well over a year) was something the folk-pop singer never predicted when he wrote it in 15 minutes at home. "I played a happy-hippie chord progression that would probably work without 50 different Bob Marley songs," he told Rolling Stone. "I thought, 'It's too novelty. This is a nursery rhyme,'" concluding that "you can never guess what's gonna be a hit."