Kurt (Chris Colfer) Performs "I'm the Greatest Star" in Glee Season 3, Episode 2: "I Am Unicorn" Share Tweet September 29, 2011 by Wetpaint Entertainment Staff Related: Glee, Music, Kurt Hummel, Season 3 Episode 2 Glee - I'm the Greatest Star from Leadro22 on Vimeo. Credit: Vimeo Original Air Date: September 27, 2011, 8/7c
 Performs "I'm the Greatest Star" in Glee Season 3, Episode 2: "I Am Unicorn")
