This Belgian-Rwandan dynamo's music is situated at the intersection of hip-hop, pop, and EDM. But when you trace the steps he took to get there, you wind up at some unlikely starting points. It's no surprise that Stromae bows before dance-floor deities from Technotronic to Major Lazer, but dig deeper and you'll hear echoes of Buena Vista Social Club's Cuban groove and the dramatic balladry of Jacques Brel.