She's a supermodel, TV show hostess and she's showing off her acting chops!

Tyra Banks will guest star on one episode of "Gossip Girl's" upcoming third season, her rep confirms to Usmagazine.com.

Banks will play Ursula Nyquist, an actress who Serena (Blake Lively) must control at the premiere of her latest movie.

The episode is scheduled to air October 5 on the CW.

Hilary Duff is also slated to appear on the hit teen drama this fall.