Glee star Matthew Morrison has been keeping busy during the Fox musical series’ hiatus touring as he promotes his self-titled album.Morrison stopped by Fuse’s weekly interview show, hosted by Blink-182’s Mark Hoppus, to explain the meaning behind the first single from his debut album, “Summer Rain.”Turns out Morrison was a bit of an exhibitionist with an ex-girlfriend during his early 20s when the duo were up on a rooftop on a summer afternoon day in New York. “This summer rain kind of took us and we just went for it,” he says.Watch a preview of the episode, which airs Friday at 11 p.m. on Fuse, below.SourceBeing in a gang in the “mean streets of Orange County”LMNTSummer Rain and daytime sexThe success of GleePlaying the ukuleleWorking with Elton JohnOne more short clip about Curious George – thanks Erin for this!