The episode introduced new cast member Darren Criss. The star of the college parody and YouTube hit "A Very Potter Musical," Criss plays Blaine, a gay character at rival Dalton Academy who befriends Kurt (Chris Colfer) when he transfers to the school after too much bullying at McKinley High.
Songs performed in the episode includes "One Love"/"People Get Ready," "Teenage Dream," "Start Me Up"/"Livin' On a Prayer" and "Stop! In the Name of Love"/"Free Your Mind."
To watch (or re-watch) the episode, look below: