"Don't You Worry Child" Swedish House Mafia ft. John Martin

Scoring the biggest crossover hit of your career—it's not a bad way to go. Just as dance music supergroup Swedish House Mafia prepares to take an indefinite hiatus, their farewell single, "Don't You Worry Child," is finding unexpected success on the pop charts. (It also recently became their third #1 club hit.) Helping the transition from dance floor to radio is a touch of pathos, evoked most prominently by vocalist John Martin. Recalling a father's advice, his ecstatic cries add an emotional texture to the otherwise fairly standard rave-up, giving a sense of deeper meaning to a listener's desire to jump along. B