Lady Gossip: GaGa To Make Cameo On Gossip Girl

Lady GaGa was snapped leaving the New York-based set of the popular CW show Gossip Girl on Tuesday.

Gossip Girl hunk Penn Badgley said he got a first-hand chance to work with the Paparazzi singer.

"Yeah, she's a part of the threesome — I'm kidding," Badgley told MTV. "She's not, but there is a threesome and there is Lady Gaga, so you gotta keep watching. I don't want to give away too much, but she will perform a little bit -- and it is involved in my story line."

Gossip Girl, which also stars Chace Crawford, Blake Lively and Ed Westwick, airs Monday nights on the CW network at 9/8c.