Joanna Krupa is an early favorite to take this season's 'Dancing With the Stars' crown, but all that spinning and salsaing seems to be taking its toll on the petite model's itty bitty bod.

"We are training six hours a day so I don't really have a specific diet, and I have been craving bad fast food more than ever. I haven't lost any weight, but I'm a little leaner than normal," Krupa told Tarts in an exclusive interview. "But I am sore in places I haven't been before... so I've been taking Advil every day three times a day. I've also been getting massages if I get too sore."

SLIDESHOW: Joanna Krupa's nude Maxim shoot plus her bikini 'Greatest Hits'.

But pain aside, Krupa couldn't be happier heating things up with partner Derek Hough.

"We definitely have chemistry but it’s all innocent... I couldn't have asked for a better partner because he is so goofy and we have a blast in rehearsals," she added. "I don't think I have ever laughed as much in my life as I do in our rehearsals. He makes it fun and not all about being serious and tough on me."

And despite Krupa's insanely good looks and obvious dancing abilities, she said everyone so far has been incredibly nice and supportive - although there is one starlet who the bikini babe is relieved didn't get called to the cast line-up this time around.

"Popularity wise Paris Hilton would probably win over me, but when it came down to dancing and personality, I am sure I would easily win over her," Krupa added. "Let's say I am thrilled I don't have to compete in the same show as her."

Krupa and Hilton apparently have a long history of being far from BFFs, stemming from an incident at a Miami nightclub in which the hotel heiress reportedly tried to have Krupa removed from the VIP as she was jealous of the fact that there was someone there better looking than herself.

Jessica Simpson Bares Bikini Bod in Front of Thousands

Jessica Simpson’s weight as been a source of sustained scrutiny of the years, but that hasn’t stopped the blonde beauty of baring her bod in a bikini for thousands of partygoers to celebrate her sis Ashlee’s 25th Birthday at WET REPUBLIC in Sin City over the weekend.

"Safaricus! New outfit! Wet republic pool party. Kept secure in the summer heat," Jessica twittered after the bash.

Ashlee (who donned shoes from her big sister’s self-titled shoe line) was also joined by hubby Pete Wentz, parents Joe and Tina and a few close friends and was overheard gushing about the new Chanel shoes Pete gave her for the special day and how blessed she felt to have such a loving family and son. At one point the "Melrose Place" starlet even got on the mic and requested the DJ play Beyoncé’s "Single Ladies" and asked all the bikini-clad females to do their version of the famous dance. She then did her adaptation of the dance for everyone to see as they cheered her on before jumping into the crowd to frolic with her female fans.

While Jessica wasn’t quite as energetic, eyewitnesses told Tarts she seemed far from down and out.

"Jessica looked beautiful and very relaxed," said our source. "She didn’t have any qualms about showing off her body and enjoying the family time."

The night before the entire Simpson family was honored at Operation Smile’s 8th Annual Smile Gala in Beverly Hills, a worldwide medical children’s charity of which Jessica has been championing for many years. And once again the songstress proved she wasn’t afraid of the body police by donning a form fitting black jumpsuit.

Khloe Kardashian and Lamar Odom’s Wedding Cost $1 Milliuon, Only They Didn’t Pay

Despite the rampant sponsorship reach out involved with Khloe Kardashian and Lamar Odom’s quickie wedding last weekend, Tarts has been told that the lavish 250-guest affair still cost a whopping $1 million - and it was the Kardashian’s network E! which footed the bill.

A rep for "Keeping Up With the Kardashians" did not respond for comment.

But despite the $1 million wedding expenditure, we’re told that Comcast (the parent company of E!) laid off around 40 employees last week.

Pop Tarts Scene & Herd

Zach Braff enjoying a Zaya Rum cocktail while chatting with his Scrubs co-star Sarah Chalke, and 'Will & Grace' funnyman Sean Hayes, while celebrating a friends birthday party in Hollywood on Friday night.

Nick Cannon discussing wife Mariah Carey's amazing body at the Wii Fit launch in Los Angeles on Tuesday while mother of 4, Brooke Burke pulled some interesting moves on the Wii Fit Plus yoga.

Kristin Cavallari dismissing salary rumors at the UNITE Unveiled party at the Skybar at the Mondrian Hotel on Tuesday night, while Cheryl Burke, Ken Paves, Gretchen Rossi, and Lisa Edelstein checked out Gen Art’s "fresh faces in fashion." Kelly Monaco was also seen conoodling with jewelry designer, Pascal Mouawad and Hunter Parrish sipped on SVEDKA cocktails.

Selena Gomez enjoying the do-it-yourself frozen yogurt bar, photo booth and graffiti wall alongside iCarly’s Jennette McCurdy at Gomez's album release party in Hollywood on Tuesday night. Although the young crowd partied as hard as any tweenager possibly could, many of them could not keep their eyes open and although the celebration was scheduled to run until 12am, there wasn’t one guest left standing as 11pm hit.

Steve Martin playing his banjo for a small crowd of friends and fans at West Hollywood's Largo at the Coronet on Tuesday night.

Kara Dioguardi headlining a special live performance at the private residence of Jeff and Mei Sze Greene in Beverly Hills for the Somaly Mam Foundation’s 2nd Annual Los Angeles Gala, "An Evening of Hopes and Dreams" on Tuesday.

Lisa Kudrow rocking an impromptu performance of "Friends" hit "Smelly Cat" at Feeding America's "Rock A Little, Feed A Lot" concert at Club Nokia in LA on Tuesday, with a little encouragement from Courteney Cox. Other attendees included Sheryl Crow, Alanis Morissette, Marcia Cross, David Arquette, Jeff Probst, Lance Bass, Alison Sweeney, Katharine McPhee and Christina Applegate.

David Beckham and his wife Victoria looking lovey dovey at an event to celebrate the launch of the Adidas Originals by Originals David Beckham clothing line designed by James Bond in LA on Wednesday.

True Blood's Rutina Wesley attending Three-O Vodka/Gen Art’s "Fall for New York" event at Skylight Studios in NYC on Wednesday night.

Holly Madison throwing out the first pitch before a baseball game between the Los Angeles Angels and the Texas Rangers in Anaheim, Calif., Wednesday.

Nick Lachey stopping in at First Food & Bar at the Palazzo for a late lunch on Thursday.

Lauren Conrad celebrating the launch of her fashion collection with Kohl's Department Stores - LC Lauren Conrad - at a private event in Hollywood on Thursday night with pals such as Danny Masterson, Whitney Port and Lo Bosworth.

Emmylou Harris, Vince Gill and Dwight Yoakam participating in a guitar pull at Club Nokia in downtown Los Angeles on Thursday night to raise money for the Country Music Hall of Fame.

Jim Carrey talking about how shy he is while being honored (alongside companion Jenny McCarthy) at the UCLA Department of Neurosurgery 2009 Visionary Ball at the Beverly Wilshire Hotel on Thursday night.

Howard Stern dining with wife Beth at Nobu inside the Hard Rock Hotel & Casino on Thursday night.

'Real Housewives of New York' star Jill Zarin celebrating the third SVEDKA VODKA SESSIONS, an emerging artist concert series presented by music industry veterans Giant Step, at Hudson Bar at the Hudson Hotel in NYC on Thursday night.

Beyoncé Knowles honored with Billboard's "Woman of the Year" at the Billboard Women In Music brunch at The Pierre Hotel in New York on Friday.

Paris Hilton hosting a preview fashion show for her new sunglasses collection at the pool at Hard Rock Hotel & Casino on Friday night before cozying up to beau Doug Reinhardt over dinner at Nobu and ofcourse partying it up at Body English afterwards. Earlier in the day the heiress stopped by Love Jones to buy Halloween costumes, purses, a dress, rhinestone jewelry and panties with Doug's name on them...

Jeremy Piven in hight spirits at New York Rangers season opener at Madison Square Garden on Saturday night.