3OH!3's 'You're Gonna Love This'

Remember 3OH!3? They were the jokey electro-pop playboys before LMFAO with the hits "Don't Trust Me" and "My First Kiss." Well, the Colorado duo is taking its pop more seriously on "You're Gonna Love This" (Photo Finish), which takes an edgier route to dance-floor domination, throwing in dubstep breakdowns and a more aggressive beat with the fun. Is there room enough for two party-rocking duos at the top? We'll find out. "This" is a pretty good challenge.