If you didn't know who Aaron Tveit was before, odds are you do now. After he took the stage as Danny Zuko in Fox's Grease: Live on Sunday night, the Internet hasn't stopped buzzing about the talented actor. Not only were people talking about his short shorts and protruding biceps, but Aaron also showed off his impressive singing voice during the production (he did star as Fiyero in Broadway's Wicked, after all). Keep scrolling for some of his hottest moments from Grease: Live, and then check out the best reactions to the show.