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Image: Kirstie Alley
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Kirstie Alley said,  "I honestly didn't even realize what I looked like."
updated 9/14/2011 3:43:39 PM ET 2011-09-14T19:43:39

Kirstie Alley's winning the battle of the bulge!

The "Dancing With the Stars" runner-up has majorly slimmed down since her stint on the ABC show. "I've lost 100 pounds," she told Entertainment Tonight in an interview that aired Tuesday.

"I feel like I'm back in my element," the 60-year-old said. "I honestly didn't even realize what I looked like." 

PHOTOS: Incredible DWTS body makeovers

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On Tuesday, Alley strutted her banging body on the Zang Toi catwalk in NYC. Clad in an elegant-yet-dramatic royal blue, rhinestone-adorned gown, she wowed the audience as she closed her designer pal's Spring 2012 show.

PIC: See Kirstie rock the runway!

"Before "Dancing With the Stars," I bought these dresses from size 14 to 4," she explained. "[They were] all the same dress, and I said, 'You know what I really want? I really wanna be in this dress in a 4!'" 

So does the actress — who says she is indeed now a size 4! — want to follow up her weight loss with a little nip and tuck? "I haven't had plastic surgery but here's the reason: People do plastic surgery to make you look younger," she said. "I don't think it makes you look younger. I like it can make you look weirder."

PHOTOS: Stars who've been bullied for their weight

Alley's trim new physique might attract some more male suitors, but they should be prepared: she's not looking for anything long term! "This is what I think about sex," she said bluntly. "I think it's fun to hookup every night for six months ... Then it's time to move on!"

Copyright 2012 Us Weekly

Photos: Kirstie Alley

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  1. Kirstie Alley

    Kirstie Alley appeared on the TODAY show on April 7, where the actress opened up about her weight battle and revealed she will resume her position as a spokesperson for Jenny Craig. (TODAY) Back to slideshow navigation
  2. New series

    Kirstie Alley and cast in the new sitcom "Kirstie," that centers on Alley as a Broadway star and a new parent. It reunited her with former Cheers co-star Rhea Perlman and Seinfeld star Michael Richards. The series premiered on December 4, 2013. (TV Land) Back to slideshow navigation
  3. Premiere party

    Actress Kirstie Alley attends the "Kirstie" premiere party at Harlow on December 3, 2013 in New York. (Robin Marchant / Getty Images) Back to slideshow navigation
  4. The art of men

    Kirstie Alley attends a signing for her book 'The Art of Men' at Barnes & Noble bookstore at The Grove on November 11, 2012 in Los Angeles. (Araya Diaz / FilmMagic) Back to slideshow navigation
  5. 'Dancing' queen

    Kirstie Alley was paired with Maksim Chmerkovskiy in season 12 of "Dancing With the Stars." The actress made it to the finals of the reality TV competition in 2011. (ABC) Back to slideshow navigation
  6. Avast!

    Alley arrives at the premiere of "Pirates Of The Caribbean: On Stranger Tides" on Saturday, May 7, 2011 in Anaheim, Calif. (Jordan Strauss / Getty Images Contributor) Back to slideshow navigation
  7. 'Big' star

    Actress Kirstie Alley has always been very public about her beliefs and her life, including her struggles with her weight. Here are highlights of her colorful career.

    Starting in March 2010, the A&E reality series Kirstie Alley's Big Life follows the actress as she battles with her weight, launches her own weight-loss company, raises her two children, and looks for love. (A&E) Back to slideshow navigation
  8. Opening up to Oprah

    Kirstie Alley appeared on Oprah in February 2010 to talk about her battle for weight loss. She also talked about her new show, Kirstie Alley's Big Life , and admitted to a crush on Jamie Foxx. (WENN) Back to slideshow navigation
  9. Organic approach

    In January 2010, Kirstie Alley launched Organic Liaison, a USDA-certified organic weight-loss product. A public advocate against obesity, Alley has also appeared in ads for the Jenny Craig weight-loss program. (organicliaison.com) Back to slideshow navigation
  10. Kirstie and her kids

    Kirstie Alley was all smiles as she left Katsuya restaurant in Hollywood on Jan. 14, 2010 with her adopted daughter, Lillie Price, and adopted son, William True. (PacificCoastNews) Back to slideshow navigation
  11. Cover girl

    The headline said it all on the cover of the May 18, 2009 issue of People magazine. "I fell off the horse," the actress admitted in the cover story. (People) Back to slideshow navigation
  12. Revealing moment

    On Nov. 6, 2006, Kirstie Alley appeared in a bikini on Oprah . She told the daytime host that she had lost 75 pounds. (WENN) Back to slideshow navigation
  13. It's Showtime

    In January 2005, Kirstie Alley appeared during the Television Critics Winter Press Tour in Universal City, Calif., to promote Fat Actress , a mockumentary-style comedy series on Showtime in which she starred. (Frederick M. Brown / Getty Images) Back to slideshow navigation
  14. Shrink rap

    In May 2003, Kirstie Alley led protesters in a march against the American Psychiatric Association in San Francisco. Alley is a member of Scientology, which is hostile to psychiatry. (Justin Sullivan / Getty Images) Back to slideshow navigation
  15. With Mom at 'Monsters'

    Kirstie Alley and kids attended the world premiere of animated comedy Monsters, Inc. at the El Capitan Theatre in Hollywood on Oct. 28, 2001. (Jason Kirk / Getty Images) Back to slideshow navigation
  16. Bevy of beauty

    Kirstie Alley (second from left) appeared with (from left) Mindy Sterling, Denise Richards and Sam McMurray in the 1999 comedy Drop Dead Gorgeous , a spoof about a small-town beauty pageant. (Getty Images) Back to slideshow navigation
  17. Fairy enough

    In Toothless , a 1997 fantasy TV-movie, Kirstie Alley played a dentist who died but then was sent back to Earth as a tooth fairy. (Walt Disney via Everett Collection) Back to slideshow navigation
  18. Out of the Closet

    Kirstie Alley posed for this publicity still for the 1997-2000 TV sitcom Veronica's Closet . Over the show's run she earned Emmy, Golden Globe and SAG Award nominations in the title role. (Getty Images) Back to slideshow navigation
  19. Blonde Alley

    In the 1996 TV-movie Suddenly , Kirstie Alley tackled a dramatic role as s a waitress crippled in a traffic accident. Jason Beghe costarred. (Everett Collection) Back to slideshow navigation
  20. And the Emmy goes to...

    After two previous nominations, Kirstie Alley won an Emmy in 1991 for her work on Cheers . In her acceptance speech, she famously thanked then-husband Parker Stevenson "for giving me the big one for the last eight years." (Jim Smeal / WireImage) Back to slideshow navigation
  21. Alley and hubby

    Kirstie Alley was married to actor Parker Stevenson from 1983 to 1997. During their marriage, the couple adopted two children. (Diane Freed / Getty Images) Back to slideshow navigation
  22. Isn't she Lover-ly

    Kirstie Alley appeared with a young Patrick Dempsey in the 1989 comedy film Loverboy . (Everett Collection) Back to slideshow navigation
  23. Big 'Talking'

    Kirstie Alley costarred with (from left) John Travolta, Olympia Dukakis and George Segal in the 1989 comedy "Look Who's Talking." The film was a hit and spawned several sequels. (TriStar Pictures) Back to slideshow navigation
  24. Be of good Cheers

    Alley's star rose with her 1987-1993 role as Rebecca Howe on the long-running sitcom Cheers . Ted Danson costarred as barkeeper Sam Malone. (NBC) Back to slideshow navigation
  25. Northern belle

    Kirstie Alley played a member of a prominent Pennsylvania family in North and South , an acclaimed 1985 TV miniseries set in the Civil War era. The cast also included (from left) Robert Guillaume and David Ogden Stiers. (Warner Bros via Everett Collection) Back to slideshow navigation
  26. Funny bunny

    Kirstie Alley played feminist Gloria Steinem (right) in the 1985 TV-movie A Bunny's Tale , which was based on Steinem's experiences working as a Playboy Bunny. (David Bookstaver / AP) Back to slideshow navigation
  27. Alley 'Cat'

    In 1983, Kirstie Alley played Maggie "The Cat" in a stage production of Tennessee Williams' Cat on a Hot Tin Roof in Los Angeles. (Ron Galella / WireImage) Back to slideshow navigation
  28. 'Khan' 'do

    Kirstie Alley played the half-Vulcan officer Saavik in the 1982 movie Star Trek II: The Wrath of Khan . Reportedly she was chosen for the role because she resembled Trek creator Gene Roddenberry's image of what a Vulcan should look like. (Paramount Pictures) Back to slideshow navigation
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