Petite powerhouse Christina Aguilera will join the stylistas of Project Runway as a guest judge on the October 15 episode of fashion-forward hit, a rep for the Lifetime show confirmed to Access Hollywood on Thursday.

The Grammy Award-winning diva is the latest A-lister to appear on the sixth season of Runway, following guest judging appearances by Lindsay Lohan, Rachel Bilson, Rebecca Romijn, and Eva Longoria Parker.

Project Runway airs Thursday night @ 10 PM on Lifetime.