"Dancing with the Stars" alum Kirstie Alley has proven she can keep the weight off... and then some! The actress showed off her 90-pound weight loss Monday night before heading into the Ed Sullivan Theater to tape David Letterman's show.
The 60-year-old star looked at least 15 years younger -- choosing a stunning purple gown and gold heels for her appearance.
Regarding her dramatic transformation, Alley told the Daily News, "For the last year and a half I've been wearing tents. So I've decided... I'm going in the opposite direction. Let everybody see my body. I'm proud of it!"
See Kirstie's leaner bod on "Letterman" -- airing Thursday on CBS.