Clinton Kelly says that one of the worst dressed women ever to set foot on TLC's What Not To Wear appears on tonight's episode (9 p.m. ET).

"I generally lump the women on What Not To Wear into three different categories," says Kelly, who has starred on the show for five years with Stacey London. "They're either frumps, sluts or freaks. Crizti (Walsh, a disc jockey from Norfolk, Va.,) had a little bit of each one."

It's the 250th episode of the show and Kelly says he's got one more year on his contract. But he's not ready to go anywhere. "I'll keep doing the show as long as they want me. I like it. Stacy and I have pretty much a belly laugh every day."

On hiatus now, Kelly has been running around all week working another show: Miss America: Behind the Curtain, airing tonight on TLC at 10, right after What Not To Wear. Earlier this week, he pretended he was a contestant.

"It was fun to have Rush Limbaugh firing questions at me. And Vivica Fox! She's more intimidating than Rush," he says. "She's beautiful and intense - that's a scary combination." He says they gave him an 8 out of 10 score.

Other celeb judges at Saturday night's Miss America 2010 show include: Olympian and DWTS champ Shawn Johnson, comedian Paul Rodriguez and American Idol favorite Brooke White. Mario Lopez will host and Clinton will be a correspondent for the show, which airs live from Las Vegas at 8 ET on TLC.