Kirstie Alley has never looked better!

The actress — who turns 66 today, Jan. 12 — stepped out in NYC yesterday and couldn’t help but flaunt her significant weight loss!

As fans of Kirstie’s know, fluctuating weight has been a struggle for the Cheers star. Since 2014, the beloved actress has served as a Jenny Craig spokesperson — and her hard work sure is paying off!

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In 2015, she opened up about her decision to slim down — and keep the weight off for good!

“I’m sick of [yo-yo dieting] and I know that other people are sick of it, too. I like to catch a glimpse of myself in the mirror and say, ‘Wow, you still look cool.’ That wasn’t happening. I really didn’t look cool or sexy or anything — I thought I just looked fat,” she told Closer Weekly at the time.

kirstie alley weight loss getty, splash
Getty Images, Splash

Kirstie in 2011 (left) vs. 2017 (right).

She continued, “[Before], I would think, I’m going to lose this weight and then I can eat anything I want. I was setting myself up to fail.”

Well, whatever you’re doing now sure is working! Check out Kirstie’s amazing transformation!