Pittsburgh rapper Wiz Khalifa's style is a perfect balance of pop hooks, effortless charm, and stoner rap swagger. He was one of the highest-rising stars of mainstream hip-hop in the 2010s, when he released four albums that reached number one or two on the Billboard 200. With a series of hits built around slick rhymes and slicker production, Khalifa moved from mixtapes to stadium anthems and even major motion-picture soundtrack collaborations with pop star Charlie Puth (the massive hit "See You Again"). His charm, persona, and weedy wit have been in peak form from the time of ...