Due to time restrictions, this video of Sebastian (Grant Gustin) and the Warblers performing Michael Jackson's hit "I Want You Back" never made it into the final episode of Glee Season 3, Episode 11: “Michael.” However, creator Ryan Murphy has now released the full song on his YouTube channel. Take a look! (And yes, it is okay to swoon over Grant Gustin and how ridiculously attractive he is.) Come to think of it, we want HIM back (on Glee)! Provided he stays away from Blaine, of course.