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5 Celebrities Who Are Known For Their Yo-Yo Diets
![Kelly Osborne comes to Villa Blanca for lunch in Beverly Hills](https://media.okmagazine.com/brand-img/C0H9m92sM/480x251/2014/04/kelly-osbourne-weight_p.jpg?position=top 480w, https://media.okmagazine.com/brand-img/C0H9m92sM/640x335/2014/04/kelly-osbourne-weight_p.jpg?position=top 640w, https://media.okmagazine.com/brand-img/C0H9m92sM/768x402/2014/04/kelly-osbourne-weight_p.jpg?position=top 768w, https://media.okmagazine.com/brand-img/C0H9m92sM/1024x536/2014/04/kelly-osbourne-weight_p.jpg?position=top 1024w, https://media.okmagazine.com/brand-img/C0H9m92sM/1280x670/2014/04/kelly-osbourne-weight_p.jpg?position=top 1280w, https://media.okmagazine.com/brand-img/C0H9m92sM/1440x753/2014/04/kelly-osbourne-weight_p.jpg?position=top 1440w, https://media.okmagazine.com/brand-img/C0H9m92sM/1600x837/2014/04/kelly-osbourne-weight_p.jpg?position=top 1600w, https://media.okmagazine.com/brand-img/C0H9m92sM/2160x1130/2014/04/kelly-osbourne-weight_p.jpg?position=top 2160w)
Jan. 28 2015, Updated 2:07 p.m. ET
Valerie Bertinelli Weight
![EXCLUSIVE: Actress Valerie Bertinelli wearing a tight fitting black dress as she heads to her trailer on the set of her sitcom ‘Hot in Cleveland’](https://media.okmagazine.com/brand-img/Zc7SH7Qc6/375x500/2014/04/valerie-bertinelli-weight_p.jpg 375w)
A broken foot in December kept Valerie Bertinelli from exercising, and she gained back some of the weight she lost as a Jenny Craig spokesperson. Pictures went viral. Ouch!
Rachel Frederikson Weight
![Today – Season 63](https://media.okmagazine.com/brand-img/xcjwz9rht/375x500/2014/04/rachel-frederickson-weight_p.jpg 375w)
From a high of 260 pounds, NBC’s The Biggest Loser winner Rachel Frederickson dropped 155 pounds in season 15. But many — including her trainer, Dolvett Quince—were shocked when Rachel was unveiled as the winner. At 105 pounds, she appeared alarmingly, even dangerously, gaunt. The good news: Since flming the show’s fnale Rachel has gained back 20 pounds, arriving at a weight she calls “perfect.” Cheers!
Kelly Osbourne Weight
![Kelly Osborne comes to Villa Blanca for lunch in Beverly Hills](https://media.okmagazine.com/brand-img/ewtouchYE/375x500/2014/04/kelly-osbourne-weight_p.jpg 375w)
- Valerie Bertinelli Admits She's Battling Old 'Demons' in Her New Relationship With Mike Goodnough But Says He's 'Worth Fighting For'
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- Valerie Bertinelli and Boyfriend Mike Goodnough Stun During Red Carpet Debut at 2024 Daytime Emmys: Photo
By early 2013, Kelly Osbourne had lost 70 pounds. But her recent split from musician fiancé Matthew Mosshart has prompted a noticeable
Christina Aguilera Weight Loss
Christina Aguilera was super teensy during her "Genie in a Bottle Days," but she's gained weight as she's gotten older (and had a kid). Christina debuted this sexy new figure in 2013, which we expect will be similar to her post-baby body debut after she gives birth to her second child later this year.
Kelly Clarkson Weight
![Kelly Clarkson Performs Private Concert At Swangard Staduim](https://media.okmagazine.com/brand-img/1CsiyDVWB/345x500/2013/12/ffn_jking_clarkson_kelly_111013_51258020.jpg 345w)
Kelly Clarkson’s always been vocal about her weight issues, but since she won American Idol in 2002, she’s gone from normal-sized to super skinny to slightly overweight. She’s pregnant now, though, so a few extra pounds is totally allowable.