Audrina Patridge, star of "The Hills," will make a special guest appearance on an all-new episode of MADtv Saturday, Sept. 20 (11:00 PM-Midnight ET/PT) on FOX.

In the hilarious sketch "Audrina Brings the Drama," Patridge visits the set and within a matter of minutes, turns the MADtv cast members against each other and raises late-night drama to new levels.

Patridge made her small-screen debut in 2005 as the fun and outgoing friend on the MTV series, "The Hills," a reality show documenting the lives of four young girls trying to make their mark in Los Angeles. She recently completed production on her first film, "Into the Blue 2: The Reef," starring opposite Chris Carmack and Laura Vandervoort. Originally from Downey, CA, Patridge now lives in Los Angeles.

Patridge also makes a guest appearance as a patron of "The Inn," one of New York City's hottest and hippest hotels, on an episode of the new FOX comedy Do Not Disturb Wednesday, Sept. 17 (9:30-10:00 PM ET/PT).

Click the pics for Audrina Patridge's gallery: