Tyra Banks has always been an advocate for women of all shapes and sizes.
After an unflattering picture of her in a bathing suit appeared in a tabloid magazine, Banks defended her fuller figure on her show, and even appeared on the cover of People magazine with the headline "You Call This Fat?"
But after dropping 30 pounds, the former supermodel was singing a different tune. She flaunted her new physique during a recent photo shoot in New York.
The 35-year-old Banks, who is now a slim size 6, gushed over her smaller figure on her show.
"I always feel great when I don't have clothes on," she said, admitting she might be "doing a little T.M.I. (Too Much Information)."
"When I told the world to kiss my fat ass, I remained that size for two years. I maintained it with my ice cream and my salad with ranch dressing and croutons and bacon bits."
Apparently, she has tossed the bacon bits and ice cream and is once again triumphing over the scale. We just can't seem to get enough of stories like hers, says Lesley Kinzel, author of the blog Fatshionista.
"It's partly aspirational," Kinzel said. "We look up to celebrities as a vision of our idealized life and body. When a celebrity is able to lose weight successfully, it's a boost to a lot of people."
On the flip side, when celebrities gain the weight back, we are equally fascinated. "It's related to making ourselves feel better about our own failures to lose weight."
With shows like "More to Love" on television and plus-size models gracing the pages of Glamour, Kinzel believes there is a cultural shift toward more acceptance of different body types.
That said, will we ever stop caring about celebrities' weight?
"Never," she said.
Here now, ABCNews.com looks at five celebrities currently up on the scale and five, including Tyra, who are down.
Like a lot of stars, Simpson's weight fluctuates.
Earlier this year, the pop-turned-country singer endured a public hazing when she dared to wear a pair of high-waist jeans at a concert, showing off a more curvaceous figure.
"Clearly, since we saw her last, she slayed that dragon named dignity and just spooned frosting into her mouth full-time," wrote the blog "What Would Tyler Durden Do?"
Fox's NFL Sunday mocked her weight gain in a cartoon skit, with coach Wade Phillips saying, "Say, Tony, is Jessica around? We could use a defensive tackle!"
Fox and its sponsor Burger King apologized to Simpson through a statement issued to US Weekly yesterday. "Upon reflection, our poor attempt at humor was insensitive and we deeply apologize to anyone who might have been offended," the statement read.
Seems Simpson has gotten the last word on the matter by parlaying her extra pounds into a paycheck.
The 28-year-old Simpson got a new gig headlining VH1's upcoming reality series, "The Price of Beauty," which will follow her as she travels the world in search of what people find beautiful and why.
"I have always believed that beauty comes from within and confidence will always make a woman beautiful, but I know how much pressure some women put on themselves to look perfect," Simpson said in a statement to ABCNews.com. "I am really looking forward to discovering how beauty is perceived in different cultures and participating in some of the crazy things people do to feel beautiful."