Video: 'Glee' Cast Heads to Springfield!

The cast of "Glee" will receive the yellow treatment this Sunday when "The Simpsons" kicks off its 22nd season with some of show's musical stars!

The episode, "Elementary School Musical," follows Lisa as she attends a summer performing arts camp and gets hooked on the showbiz lifestyle. A kid-like Rachel (Lea Michele) and Finn (Cory Monteith) are there, as is Mercedes (Amber Riley), along with "Flight of the Conchords'" Jemaine Clement and Bret McKenzie as camp counselors.

Check out the promo, and watch the show this Sunday night on FOX!

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