WATCH: Adam Lambert Sings and Swings in New 'Glee' Promo

By: Brandon Voss

Is Adam Lambert a Katy or a Gaga?

Last month we got a first look at Glambert's guest spot on Glee via star Lea Michele's Twitter. Now we can see him in action in a preview for the upcoming episode "A Katy or a Gaga."

Because we all need a little time to recover from this past week's touching tribute to the late Cory Monteith, the Fox series will return Nov. 7 with the out American Idol alum playing an outrageous character named Starchild, Kurt Hummel's nemesis. Duh, he's totes a Gaga.

Sneak a peek at Adam swinging from a chandelier and singing Lady Gaga's "Marry the Night" below.

Tags: TV, Adam Lambert, Glee