Need a frisson of alternative edge for your pop star's next single? Head straight to the cool kids' No. 1 tastemaker, Diplo, the rare producer/artist who manages to maintain street cred while regularly visiting the Billboard Hot 100. Chalk it up to his globetrotting, networking, and constant search for undiscovered sounds, dating back to his days of DJing as part of duo Hollertronix. Now, when megawatt stars like Beyoncé or No Doubt are feeling stale, he's where they turn for an intro to U.K. funky, kuduro, dancehall, moombahton, or whatever else the world at large is behind on. And now, with his electronic dancehall-pop act Major Lazer a serious proposition, his label Mad Decent having worldwide success with Baauer's "Harlem Shake," and his high-profile stint as a spokesperson for Blackberry, Diplo is more influential than ever.