The 100th episode of the hit Fox musical series "Glee" airs March 18 and features original New Directions members Amber Riley (Mercedes), Mark Salling (Puck), Dianna Agron (Quinn), Harry Shum, Jr. (Mike) and Heather Morris (Brittany) as well as Chace Crawford and Tony Award winner Kristin Chenoweth.
The episode, which airs at 8 PM ET on Fox, features ten fan-chosen "Glee" songs from previous episodes that will be re-mixed and performed by the current members of New Directions. Riley, Lea Michele and Chris Colfer perform the showstopping Act I finale of Wicked, "Defying Gravity."
"Glee" is produced by Ryan Murphy Television in association with 20th Century Fox Television. Murphy, Brad Falchuk, Ian Brennan and Dante Di Loreto serve as executive producers.