Mike Posner is the quintessential artist for the post-everything age—a hip-hop producer and Justin Bieber song doctor who is also an acoustic-guitar-strapping singer whose signature tune blew up with an EDM remix. Of course, the subject matter of that folky ditty— “I Took a Pill in Ibiza”—made it natural fodder for a club makeover. But Posner's feel-good songwriting naturally adapts to myriad styles, be it the coffeehouse R&B of “Bow Chicka Wow Wow” or the campfire-rave vibes of “Stuck in the Middle.” He's also a promiscuous collaborator, whether dropping velvet-smooth verses on a Nick Jonas slow jam or throwing down with his rap duo, mansionz.