Turns out, Rachel Berry isn't the only member of New Directions with a thing for Barbra Streisand.

On Tuesday's "I Am Unicorn," look for Kurt to bust out with a classic from Funny Girl, covering the Broadway single "I'm the Greatest Star." Take a listen to his version right now, in fact:

The episode will also feature Darren Criss singing "Something's Coming" from West Side Story, while Rachel teams up with her mother (a returning Idina Menzel) for a duet.
Check out the official promo for the September 27 installment NOW!