Watch! All The Song Performances From Glee Season 3, Episode 19: "Prom-asaurus" (VIDEOS)

Between dancing cheerleaders with big dinosaur heads and swoon-tastic boy bands, the music from Glee Season 3, Episode 19: "Prom-asaurus" is not to be missed. Want to check out any of the songs again? Now you can re-watch each of the great performances.


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