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OTRC: 'Big Bang's Jim Parsons' 'Rocky Horror' look vs. Steven Weber's 'Gypsy' (Poll)

Actors Steven Weber, left, and Jim Parsons pose backstage at the 21st annual 'A Night at Sardi's' benefit for the Alzheimer's Association at the Beverly Hilton Hotel on March 20, 2013. / The cast of 'The Big Bang Theory' performs at the 21st Annual 'A Night at Sardi's' to benefit the Alzheimer's Association at the Beverly Hilton Hotel on Wednesday, March 20, 2013 in Beverly Hills, California. (Jordan Strauss / Invision for Alzheimer's Association / AP Images)

Jim Parsons recently unleashed his inner Sweet Transvestite, donning fishnet stockings, a wig and bright red lips and a feather boa, as he and the rest of the cast of the "The Big Bang Theory" performed the famous "Time Warp" song from the cult film "The Rocky Horror Picture Show" at a benefit earlier this week.

(Check out photos from their stage performance.)

The actor, portraying "Rocky Horror" villain Frank-N-Furter, was joined on stage by co-stars Kaley Cuoco (dressed in a naughty maid's costume to portray Magenta), Simon Hedberg (dressed as her character's life partner Riff Raff), Melissa Rauch (playing tap-dancing Columbia), Kunal Nayyar (channeling Meat Loaf's Eddie) and Johnny Galecki and Mayim Bialik.

Actor Steven Weber of "Wings" fame also appeared in drag at the event, which benefited the Alzheimer's Association and took place at the Beverly Hilton Hotel in Beverly Hills, California on Wednesday night. He wore a pink, blue and purple butterfly-like burlesque costume, complete with a nude bodysuit, antennae, pearls and a blonde wig and posed for photos with Parsons.

Weber performed on stage in his costume with Sharon Lawrence and Linda Hart. They sang "You Gotta Get a Gimmick" number from the musical "Gypsy."

Other performers at the event included:

Emmy Rossum -- the actress, known for her roles in Showtime's "Shameless" and the 2004 musical film "The Phantom of the Opera," sang the song "Keep Young and Beautiful," made famous by Eddie Cantor.

Zachary Levi -- the "Chuck" alum sang "The Lady is a Tramp," made famous by Frank Sinatra.

Jason Alexander -- George Constanza from "Seinfeld" sang "Good Evening, Beverly Hills" to the tune of "Good Morning, Baltimore" from the Broadway musical "Hairspray."

Beth Behrs -- the "2 Broke Girls" actress performed "Frank Mills," a song from the Broadway musical "Hair."

Producer Brian Grazer also received the Burrows Entertainment Award from director Ron Howard at the event.

A video of the "Big Bang Theory" cast's performance of "The Time Warp" was posted by ETOnline. Watch it below.

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