“Wha gwaan Popcaan?” The first words uttered on the 2010 smash hit “Clarks” introduced the world to Vybz Kartel’s top protégé. Those same three words can be read as both a question (“What’s going on?” ...

Last night Popcaan posted an Instagram video of himself taking the stage for an in-school performance. The response? Deafening screams—this is like Beatlemania part 2. The noise is so loud the singer ...