Series co-creator Ryan Murphy previously told tvline.com that Chenoweth will perform the original song "It's 10 AM, I'm Drunk" when her character, washed-up former glee-club star April Rhodes, returns following a failed all-white production of The Wiz. "Glee" airs Tuesdays at 8 PM ET on Fox. The next new episode will air April 19.

Chenoweth, who received a Tony nomination for her work as Glinda in Stephen Schwartz's Wicked, has been seen on the New York stage in The Fantasticks, Scapin, Steel Pier, A New Brain, Epic Proportions, Strike Up the Band, On a Clear Day You Can See Forever, The Apple Tree, Stairway to Paradise and Candide. The actress won her Tony Award for her performance as Sally Brown in the Broadway bow of You're a Good Man, Charlie Brown. Her screen credits include "Four Christmases," "Into Temptation," "Pushing Daisies," "Kristin," "The West Wing," "The Music Man," "The Pink Panther," "Stranger Than Fiction," "Deck the Halls" and "Running with Scissors." Her solo recordings include "Let Yourself Go," "As I Am" and the newly released "A Lovely Way to Spend Christmas." She recently picked up her first Emmy Award for her work in ABC's "Pushing Daisies."