Although Wiz Khalifa’s Pittsburgh-repping calling card “Black and Yellow” still sits at No. 18 on Billboard, the song will soon likely fade just as the Steelers’ Super Bowl hopes did last month. So here’s “Roll Up,” another Stargate-produced track poised to dominate radio. The beat’s shimmering synths and surprisingly knocking drums will sound at home on pop radio (get ready, Z104) and rap station 92Q. If you’re not sold on Wiz’s lyrical ability, “Roll Up” won’t change your mind – these are elementary lines easy to memorize, recite and regurgitate. But if you like breezy rap singles that your pop-minded girlfriend will like, too, “Roll Up” is for you. The video isn’t special, but casting Diddy’s girlfriend Cassie (what happened to her recording career?) will make dudes like me watch at least once.