Pentatonix Members Perform Taylor Swift & Katy Perry Songs on 'Lip Sync Battle' - Watch a Preview (Exclusive)

Kirstin Maldonado and Mitch Grassi are battling it out!

The two Pentatonix stars are competing againt their own bandmates in the upcoming episode of Lip Sync Battle, airing on Thursday (March 8).

PHOTOS: Check out the latest pics of Kirstin Maldonado

During the episode, Kirstin performs Taylor Swift‘s “Look What You Made Me Do,” while Mitch performs Katy Perry‘s “Bon Appetit.”

Watch a preview of both of their performances below!