"You don't get over a broken heart/You just learn to carry it gracefully," sings Jens Lekman. Which is just what Lekman does on this quietly epic breakup album. On I Know What Love Isn't, the Swedish pop savant refines his sound, enveloping the catchy, eccentric melodies in piano, strings, and the occasional sax solo — a beautifully melancholy folk-lounge blend. Lekman is one of indiedom's sharpest (and gentlest, and funniest) storytellers, whether proposing a sham marriage so the he can get Australian citizenship ("I've always liked the idea of it/A relationship that doesn't lie/About its intensions and shit"), or homing in on the devastating details of a love on the rocks (the girl who puts her hand in her pocket to avoid holding her boyfriend's hand). In the end, Lekman decides "a broken heart is not the end of the world" — a sensible conclusion, sung, of course, to a heartbreaking tune.

“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."