Watch Idina Menzel Mentor The Glee Project Hopefuls as They Take On Lady Gaga

The young actors competing for a guest role on Glee found themselves in the presence of a genuine Broadway star on the most recent episode of The Glee Project. Tony winner and Glee veteran Idina Menzel surprised the hopefuls when she showed up as a guest mentor. Menzel was on hand to help teach the contestants about the importance of "theatricality," a trait she defines as being "honest, true and fearless." After the contestants performed a special group number to Lady Gaga's "Bad Romance," Menzel selected one lucky actor to receive individual coaching. Take a look at Judge Idina getting to work below!