EW Staff
July 01, 2011 AT 04:00 AM EDT

Gym Class Heroes Feat. Adam Levine, ”Stereo Hearts”
Levine takes care of the languid, well-bronzed hook and Gym Class frontman Travie McCoy puts his sunburned heart on his sleeve in this game if uneven entry in the summer-jam sweepstakes. BKyle Anderson

Björk, ”Crystalline”
Iceland’s favorite pixie cracks open her sparkly music box and unleashes a twee tornado of xylophone chimes and spaced-out lyrics about ”internal nebulae.” It’s like a lost track from 2001’s Vespertine, with a gloriously unhinged breakbeat coda. A-KA

David Guetta Feat. Taio Cruz & Ludacris, ”Little Bad Girl”
The hitmaking French house producer enlists the U.K. crooner and Atlanta rhymer to encourage ladies’ naughtiest behavior. With its twirling synths and clobbering bass line, rump-shaking shouldn’t be a tall order. B+Brad Wete

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