'Glee' Stars on Their Toughest Musical Moments

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The fourth season of Glee contained the show's 500th musical performance and one of the bonus features on the upcoming DVD includes the cast reminiscing!
ETonline scored an exclusive clip off of Glee: The Complete Fourth Season DVD, so check out Darren Criss, Lea Michele, Matthew Morrison and Chris Colfer reflecting on their favorites and most taxing musical moments.
Glee: The Complete Fourth Season hits DVD and Blu-ray on October 1.