The entire cast of Glee came together and sang "One" during the 5/11/10 episode of Glee. It was a great rendition and you can listen to it here.
More "Laryngitis" Clips
Episode: "Laryngitis" (Season 1, Episode 18)
Original Post: This Week's Glee Episode, Music: Listen and Vote Now!
Date Added: 5/11/2010