Kirstie Alley

Weighty Issues

Kirstie's weight ballooned in the 2000s. She starred in a fictional show based on her trials and tribulations called "Fat Actress" and became the spokesperson for Jenny Craig. (Photo by Frederick M. Brown/Getty Images)

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Jessica Simpson Jessica Simpson has been on both sides of the weight battle, becoming known for her strict workout regimen and toned physique a few years ago. (Getty Images)
Jessica Simpson Simpson has taken some heat the past week for what some are calling poor wardrobe choices and others are calling a sudden weight gain. What do you think?
Oprah Winfrey Who can forget the famous episode of "Oprah," where the talk show diva slipped into her size 10 skinny jeans after losing 67 lbs on a liquid diet? Over the past 20 years, Oprah's weight has yo-yo'd and has frequently been a topic of discussion on her show. (AP Photo/Charles Bennett, File
Oprah Winfrey The star, who now weighs 200 lbs, said in a recent issue of her magazine O, "I’m mad at myself. I’m embarrassed. I didn’t just fall off the wagon. I let the wagon fall on me." She plans to tackle the weighty subject in an upcoming week of special shows. (Photo by Katy Winn/Getty Images)
Ricki Lake Actress and talk show host Ricki Lake got her big break as the overweight teenager Tracy Turnblad in John Waters' original "Hairspray." (Photo by New Line Cinema/Courtesy of Getty Images)
Ricki Lake At her heaviest, Lake has weighed 260 lbs and her weight has continually fluctuated, but today Lake is looking slim and trim. She told People magazine "I didn't have surgery and I worked hard. There's no secret. I'm active. I watch what I eat." (Photo by Frazer Harrison/Getty Images)
Matthew Perry Matthew Perry's weight fluctuated dramatically during his years on "Friends" in the 1990s and early 2000s. (Tsuni/Getty Images)
Matthew Perry Perry dropped 20 pounds in 2001 after suffering from pancreatitis brought on by a prescription pill addiction and he's managed to stay on the slim side lately. (Photo by Kevin Winter/Getty Images)
Carnie Wilson Singer Carnie Wilson has been very open about her weight struggles. In 1999 she weighed 300 pounds and had gastric bypass surgery. The operation was televised and as a result, Wilson lost 150 pounds. (Photo by Amanda Edwards/Getty Images)
Carnie Wilson Wilson has since written three books on weight loss, had a baby, gained some of the weight back and appeared on "Celebrity Fit Club" in an effort to lose the weight again. (Photo by Kevin Winter/Getty Images)
Mariah Carey While no one would ever describe Mimi as obese, she has gained and lost weight throughout her career. A few extra pounds here and there have never prevented her from wearing the body-hugging teeny-weeny outfits she prefers. (AP Photo/Diether Endlicher)
Mariah Carey Mariah dropped 30 lbs in the past year by sticking to her self-invented 'morsel diet' and flying a personal trainer from St. Barts. (Photo by Stephen Lovekin/Getty Images)
Tom Hanks Tom Hanks has gained and lost substantial amounts of weight for several film roles including "Philadelphia" and "Castaway." (Photo by Kevin Winter/Getty Images)
Tom Hanks Lately Hanks has been looking fit, much like his wife Rita Wilson. (Photo by Kevin Winter/Getty Images)
Russell Crowe Russell Crowe is known for transforming himself physically for his film roles. He was unrecognizable as a puffy, middle-aged executive in "The Insider" and completely buff in "Gladiator." (AP Photo)
Russell Crowe Crowe's weight was up again and he was sporting a ponytail at the premiere of his latest film "Body of Lies." (Photo by Astrid Stawiarz/Getty Images)
Janet Jackson Janet Jackson has battled the bulge for years in an extreme fashion. She has had a killer six-pack some of the time... (AP Photo/Kevork Djansezian)
Janet Jackson And a more zaftig appearance at others. She has spoken of writing a book with her nutritionist about her struggle with her weight. (Photo by Brad Barket/Getty Images)
Kirstie Alley Kirstie Alley was super slim during her sitcom days on "Cheers' and "Veronica's Closet." (Photo By Getty Images)
Kirstie Alley Kirstie's weight ballooned in the 2000s. She starred in a fictional show based on her trials and tribulations called "Fat Actress" and became the spokesperson for Jenny Craig. (Photo by Frederick M. Brown/Getty Images)
Kirstie Alley Alley dropped from 215 lbs to around 150 lbs in her three years as Jenny Craig spokesperson. (Photo by Will Powers/Getty Images)
Valerie Bertinel... Valerie Bertinelli has had a well-documented battle with the pounds over the years. (Getty Images)
Valerie Bertinel... Last year, she released a book about her weight struggles entitled "Losing It," and became a spokeswoman for Jenny Craig. (Getty Images)
Musicians Turned... Some of your favorite musicians have acting careers, too. Find out who they are by clicking here.

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