Glee has gone gaga for Gaga!
"I want all of you to sing songs about accepting yourself for who you are, the best and the worst parts," he says, adding that they'll also perform Lady Gaga's No. 1 hit "Born This Way."
Meanwhile, rival school Dalton Academy's glee club, The Warblers -- led by Kurt's boyfriend, Blaine Anderson (Darren Criss) -- visit McKinley High to perform a rendition of Keane's "Somewhere Only We Know."
Glee airs at 8 p.m. EST on FOX.