Kirstie Alley Reveals Crazy Weight Loss: See the Before-and-After Photos!

Kirstie Alley in December 2013 (L) and in February 2016
Kirstie Alley in December 2013 (L) and in February 2016 Paul Drinkwater/NBC/NBCU Photo Bank via Getty Images; Charkes Sykes/Invision for Curves Jenny Craig

Amazing, Alley! Kirstie Alley revealed a crazy impressive weight loss while attending a Jenny Craig event in NYC on Thursday, February 18.

Alley, 65, showed off her tiny figure in a form-fitting purple dress. She rocked the look with a maroon leather jacket and kept her flowing blonde tresses down.

The Cheers alum rejoined Jenny Craig as a spokeswoman in April 2014 after a seven-year hiatus and 30-pound weight gain. She previously repped the diet program from 2005 to 2008.

Alley has been sticking to her new weight-loss plan since 2014. She opened up about dropping 50 pounds during an appearance on the Today show in January 2015.

Kirstie Alley celebrates 50 pounds down and her new 'Cheers'-themed Jenny Craig advertising campaign, 'I'm Back,' with fellow members at a New York City Jenny Craig Center. Charkes Sykes/Invision for Curves Jenny Craig

"[It's usually a] roller coaster. This time it's different," she said. "This time, I really accessed our [Jenny Craig] consultants. I did [use them in the past], but I didn't really listen to them that much. This time I really listened."

Indeed, her whole approach was different. "Before I had more of a view of 'Get to the goal, have the goal,'" she explained. "I thought, 'OK, what is the goal? What is the time span of the goal?' [This time] I really looked at it as this is my life, and until I'm dead basically, I am going to keep [doing it]. Instead of like, 'Oh, I lost 50 pounds and now I can do whatever I want.' I don't have that anymore. … My goal is to keep this and maintain this throughout my life."

Alley more recently flaunted her slim figure in a Cheers-themed Jenny Craig commercial. The Fat Actress alum reunited with her former costars John Ratzenberger and George Wendt to promote the nutrition company.

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