Mickie James, Melina, Kelly Kelly and Layla will push a few out of shape stars to their workout limits on Celebrity Fit Club: Boot Camp tonight. In an exclusive preview, the Divas told WWE.com about their new reality TV experience while filming the sixth season of the hit VH1 show.

"The Divas and I had a great time," Kelly Kelly said. "We showed the contestants this whole routine we planned out, and it was great. They were awesome listeners, and they did everything we told them to. They were really fun!"

The Divas had their hands full with Happy Days actress Erin Moran, comedian Sommore, former American Idol host Brian Dunkleman, High Stakes Poker host A.J. Benza, plus-size model Toccara Jones, Family Ties actress Tina Yothers, Charles in Charge actor Willie Aames and Dustin Diamond from Saved by the Bell.

While Kelly Kelly's report of the celebs' efforts was mostly favorable, it seems the Divas' workout wasn't exactly a piece of cake for the stars.

"I took my aggression out on Dustin," Layla said of the actor, who is notorious for making excuses on Fit Club. "I was going off on him! We kicked their butts. We made them sweat. And we made them beg for us to stop."

Melina agreed that "Screech" was the king of procrastination and laziness during the Divas' workout. "He would say, ‘I'm sorry I can't do this, I got drunk last night and just didn't sleep at all,' and blah blah blah. Then the next thing he'd say is, ‘I'm sorry, I got hurt last night, my knee, you know, my knee's been hurting me and that's why I can't do this,'" a frustrated Melina explained. "And I'd say, ‘I thought you said you got drunk last night?' And he'd say, ‘Oh yeah, that, too.'"

On the other hand, some of the celebrities put their all into the Divas' rigid routine. Mickie was especially impressed with Moran.

"As far as the hardest working person goes, I would say it was Erin Moran," the Raw Diva said. "She worked really, really hard. She went the whole time. She busted her butt, and she's cute and nice."

But there was one celebrity all of the Divas really clicked with: Toccara. The feisty model is a big fan of WWE Divas and has aspirations to be one of the Sexiest Women on Television.

"My favorite celebrity would probably be Toccara because she's just got a great personality. She's vivacious, larger than life and she wants to be a WWE Diva," Layla said.

Melina said the sassy model insisted she could make it in WWE, so Melina told her to prove herself.

"When I saw that little attitude of hers, I was like… she could totally be a WWE Diva. Let's get her in the ring. And then she's got that badonkadonk that she'd totally smush people [with]. That would be her trademark," Melina laughed.

Tune into VH1, Sunday at 11 a.m. and 8 p.m. ET to see the WWE Divas on Celebrity Fit Club: Boot Camp. Check out a video preview now.