“Re Up” echoes The Weeknd’s gorgeously despondent R&B, but Belly’s rap skills bring new dimension to Toronto’s infamously downcast grooves. Though Ahmad Balshe’s career is just beginning to accelerate, he’s no newcomer. “Trap Phone”—with a convincingly grimy appearance from Jadakiss—shows that these languid beats are rooted in the verbal ferocity of classic East Coast hip-hop.