A$AP Rocky made a surprise appearance at Hot 97's Who's Next Live event at SOB's in New York City a couple of nights ago. He hit the stage wearing the new Pyrex "23" flannel from the brand's spring/summer 2013 collection. Unfortunately, the flannel, which is priced at $550, has sold out at RSVP Gallery's e-commerce site since hitting the market last week. So hope for a re-stock if you want to get your hands on one.