Kirstie Alley revealed her weight loss to Entertainment Tonight in an episode that aired Tuesday.

The 60-year-old actress, known for her widely varying weight throughout her long career, said she is now a size four.

Alley, happy that she met her 100 lbs weight loss goal, then made her modeling debut by strutting down the catwalk in a gown designed by her friend Zang Toi on Tuesday.

Ms. Alley you look super great. I think you are back to looking like you did before Cheers other then the blonde hair, wrote one fan on her Facebook page.

You look TERRIFIC!! You're my inspiration....and the only reason I watched DWTS last season, said another.

I think you're better looking now than ever !!!! complimented a third.

Below is a photo (from Reuters) and video (from E! News Now)of size-four Kirstie Alley:

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Just earlier this year, Alley was a much heavier version of herself on Dancing With the Stars; she and her partner Maksim Chmerkovskiy finished second in the competition.

Here is Alley in 2007 (photo from Reuters):

Kirstie

Kirstie Alley

Here is Alley in 2005 (photo from Reuters):

Kirstie

Kirstie Alley