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Image: Rob Kardashian
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Rob Kardashian says he's overweight and hopes "Dancing With the Stars" will help him trim down.
updated 8/31/2011 9:00:19 PM ET 2011-09-01T01:00:19

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Story: Chat with Ree and Anna about 'Dancing'

Rob Kardashian is fighting the battle of the bulge -- and he wants to change that through his just-announced stint on "Dancing with the Stars."

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"I really want to get into shape," the reality star, 24, told Us Weekly Monday, after the season 13 cast was revealed. (Kardashian joins celebs like Chaz Bono, Kristin Cavallari, Ricki Lake, Nancy Grace, Elisabetta Canalis, David Arquette and others for ABC's hit competition.)

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"You probably wouldn't know, but I'm the most insecure and overweight I've ever been," the Keeping Up with the Kardashians sibling confessed. "I'm over 200 pounds, so I want to drop weight and this will be a good start."

'Dancing' reveals its latest batch of celebs

But Rob has a long road ahead of him in the dance department. "I'm not a confident dancer at all," he said. "And down the road... I don't want to be that guy who doesn't dance at his own wedding!"

PHOTOS: Summer slimdowns

Rob's most famous sibling, Kim, already had her DWTS moment. "She just said, like 'You're going to be really nervous.' [But] I don't want her advice - I don't need advice from someone who lasted, I think three weeks."

PHOTOS: Other famous guys who've had major makeovers

Kardashian had another motivator for doing the show: His mom-ager, Kris Jenner. "My mom pretty much forced me to do this show. She did it to Kim and now she's doing it to me! [She] just says, 'Smile and be yourself''"

Copyright 2012 Us Weekly

Photos: 'Dancing With the Stars' season 13 cast

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  1. The stars of season 13

    The new cast of "Dancing With the Stars" was revealed on Monday, Aug. 29. In the back row, from left: Ron Artest, David Arquette, J.R. Martinez, Rob Kardashian and Chaz Bono. In the front row, from left: Ricki Lake, Kristin Cavallari, Chynna Phillips, Nancy Grace, Hope Solo and Elisabetta Canalis. Carson Kressley is not pictured.

    All 12 couples will dance for the first time on ABC on Monday, Sept. 19. (Adam Taylor / ABC) Back to slideshow navigation
  2. Get the party started

    "Dancing" hosts Tom Bergeron and Brooke Burke greet the new hopefuls on Monday, Aug. 29. (Adam Taylor / ABC) Back to slideshow navigation
  3. David Arquette

    Actor David Arquette -- brother to actors Patricia Arquette, Rosanna Arquette, Alexis Arquette and Richmond Arquette -- is best known for his work in the film series "Scream." He is also married to actress Courteney Cox, but the two are currently separated.

    He's paired with pro Kym Johnson, who has won the mirror ball trophy twice in the U.S. version of the show. She was also the pro champ in season 2 of Australia's version. (Craig Sjodin / ABC) Back to slideshow navigation
  4. Ron Artest

    Ron Artest is a forward for the Los Angeles Lakers, and is known for being eccentric off the court. (He has filed papers to legally change his name to Metta World Peace.) On the basketball court, he is perhaps best known for the November 2004 Pacers-Pistons fight. Artest, a Pacer at the time, rushed into the stands to confront a fan who threw a drink at him, which led to the biggest player-fan fight to date.

    He is paired with new pro Peta Murgatroyd. (Craig Sjodin / ABC) Back to slideshow navigation
  5. Chaz Bono

    GLBT activist Chaz Bono is the only child of Sonny Bono and Cher. His documentary, "Becoming Chaz," followed his gender transition, and was nominated for three Emmys.

    He's paired with pro Lacey Schwimmer. (Craig Sjodin / ABC) Back to slideshow navigation
  6. Elisabetta Canalis

    Elisabetta Canalis is an Italian actress who has appeared in the film "Deuce Bigalow" and the TV show "Leverage," but she is best known for dating George Clooney for two years.

    She's paired with new pro Val Chmerkovskiy, who is brother to fellow pro Maksim. Val has also previously performed on "DWTS." (Craig Sjodin / ABC) Back to slideshow navigation
  7. Kristin Cavallari

    Kristin Cavallari found fame with MTV reality programs "Laguna Beach" and "The Hills." She has also appeared on "The Middle" and "CSI: New York." Cavallari was engaged to Chicago Bears player Jay Cutler, but he ended their engagement in July.

    She's paired with pro Mark Ballas, who has won the mirror ball trophy twice. (Craig Sjodin / ABC) Back to slideshow navigation
  8. Nancy Grace

    Former prosecutor Nancy Grace currently hosts "Nancy Grace" on HLN. She is also the author of mystery thrillers "The Eleventh Victim" and its sequel, "Death on the D-List." Grace is married and has twins.

    She is paired with new pro Tristan MacManus. (Craig Sjodin / ABC) Back to slideshow navigation
  9. Rob Kardashian

    Rob Kardashian is best known as the brother of Kim, Kourteny and Khloe Kardashian. He appears on several of the family's series of E! shows, including "Keeping Up With the Kardashians" and "Khloe and Lamar." He is the second Kardashian to participate in the show. Kim competed in season seven.

    He's paired with pro Cheryl Burke, who has won the mirror ball trophy twice. (Craig Sjodin / ABC) Back to slideshow navigation
  10. Carson Kressley

    Carson Kressley is best known as the fashion guru on the Bravo series "Queer Eye for the Straight Guy." He is also a New York Times best-selling author, and currently hosts "Carson-Nation" on OWN.

    He's paired with pro Anna Trebunskaya. (Craig Sjodin / ABC) Back to slideshow navigation
  11. Ricki Lake

    Ricki Lake played Tracy Turnblad in the 1988 film "Hairspray." She has since had a long-running daytime talk show ("Ricki Lake," 1992-2004) and hosted a season of VH1's "Charm School." Lake has also made numerous TV appearances.

    She's paired with pro Derek Hough, who is a three-time mirror ball champ. (Craig Sjodin / ABC) Back to slideshow navigation
  12. J.R. Martinez

    J.R. Martinez plays combat vet Brot Monroe on "All My Children." Prior to acting on the soap opera, Martinez was in the Army. He was deployed to Iraq in March 2003, but less than a month after that, his vehicle hit a landmine. Martinez was trapped, and suffered severe burns. In addition to acting, Martinez is a motivational speaker.

    He's paired with pro Karina Smirnoff. (Craig Sjodin / ABC) Back to slideshow navigation
  13. Chynna Phillips

    Chynna Phillips, the daughter of The Mamas and The Papas' Michelle and John Phillips, is perhaps best known as a member of the '90s pop trio Wilson Phillips, whose debut album sold eight million copies. She has also appeared in several films, including "Caddyshack II" and "Say Anything." She is married to actor Billy Baldwin.

    She's paired with pro Tony Dovolani. (Craig Sjodin / ABC) Back to slideshow navigation
  14. Hope Solo

    Hope Solo is the goalkeeper for the United States women's national soccer team. She was part of the team that went to the 2011 FIFA Women's World Cup finals, but the U.S. ultimately lost to Japan on a penalty shoot-out after a 2-2 tie.

    She's paired with pro Maksim Chmerkovskiy. (Craig Sjodin / ABC) Back to slideshow navigation
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  1. Image: "Dancing With the Stars" season 13 cast
    Adam Taylor / ABC
    Above: Slideshow (14) 'Dancing With the Stars' season 13 cast
  2. Image: Celebrities At The Lakers Game
    Noel Vasquez / Getty Images
    Slideshow (34) The Kardashian Klan

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