FIRST LOOK: Lady Gaga on Gossip Girl

Sunday October 25, 2009 12:00 AM EDT

Giovanni Rufino/The CW

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What’s a new NYU student to do when she’s no longer queen bee? Work her connections to get Lady Gaga to play a private show, of course! That’s what Blair (Leighton Meester) does in an upcoming episode of Gossip Girl set to air Nov. 16.

PEOPLE was on set while the pop star filmed her performance -- set to her new single, "Bad Romance."

“My little sister is the hugest Gossip Girl fan ever,” Gaga (with Penn Badgley and Meester) tells PEOPLE.

For more on her thoughts on the show -- and what it was like to perform in a 30 ft.-long stage dress -- check back with People.com on Nov. 16.

Gossip Girl airs Mondays (9 p.m. EST) on the CW. --Rennie Dyball

Giovanni Rufino/The CW