Slim Kirstie Alley strutted down the catwalk at New York Fashion Week.

Kirstie Alley showed full of confidence as she strutted down the catwalk at New York Fashion Week on Wednesday.

And this is not surprising, because the Cheers actress has reached a huge milestone in her battle to lose weight.

Kirstie Alley said she lost 100 pounds (about 50 kg) after she participated into Dancing With The Stars contest, according to a recent interview she gave to Entertainment Tonight.

In the same interview Kirstie Alley said:

“I feel like I’m back in my element. I honestly didn’t even realize what I looked like.”

Kirstie Alley, the yo-yo dieter, who now says she’s a US size 4, is clearly thrilled with her new look and insists she’s not tempted follow up with a nip and tuck.

“I haven’t had plastic surgery but here’s the reason: People do plastic surgery to make you look younger.”

“I don’t think it makes you look younger. I like it can make you look weirder.”

Kirstie Alley, 60, who once tipped the scale at 230 lbs, outdid celebrities and models alike as she took to the runway for Malaysian designer Zang Toi at New York Fashion Week.

The Cheers star stole the show as she paraded her newly slimmed down physique in front of a packed house at The Studio at the Lincoln Centre.

Kirstie Alley was wearing a stunning cobalt blue embellished gown and matching dress coat while she garnered cheers and loud ovation as she swept up the long catwalk, looking maybe 20-years-younger than her actual age.

But she didn’t stop, Kirstie Alley also donned a fitting black dress over a pair of leggings.

Kirstie Alley’s blonde hair was pulled up into a large beehive-style bun, no doubt with hair extensions added to create the full look.

One day before the show, she tweeted:

”Waaaa Hooooo!!! Kitty is ready to walk the Cat!!! False Bravado will guide me…Let’s have some fun @ZANGTOI!!!”

“Will be winkin and blinking at y’all. DONT make me laugh! Gotta keep model face. Oh, who am I kidding?? Haha,” she tweeted.

“DO NOT make eye contact! I will start giggling and fall on my well-dressed ass. Look away!”

In the end, Kirstie said:

“Thank You all the REAL Models for letting me share @ZANGTOI runway with you!!!!! You all were sooo sweet and looked soooo gorgeous!!!

“THANK YOU @ZANGTOI !!!! I love you!!! I had the time of my life!!!!”

Kirstie Alley told Entertainment Tonight that she had known Zang Toi since 1993.

“I did the cover of Redbook and I wanted something really beautiful…he just has the most beautiful clothes, period.”

Kirstie Alley enjoyed the experience, and the clothes, so much that she walked out of the Lincoln Centre wearing one of the outfits she modelled.