Like her long bleached blonde hair, this singer's body has gone through extensive transformations. From the moment she debuted "Genie in a Bottle" in 1999, Christina's figure (then rail-thin) has been the source of Hollywood gossip. Recently, Christina has been under fire for her very noticeable weight changes. One of her heaviest moments was in 2011 when she performed at the "Michael Forever" concert.
The only male child of the Kardashians, Rob gained a significant amount of weight during his relationship with Rita Ora. After making a commitment to healthier habits, he looks slightly slimmer than his lowest point. "I still have to lose like 40 to 50 pounds believe it or not," he admitted to Us Weekly. "Six months, I should be there." In March, he admitted that he weighed 235 pounds.
This pop star got her start in the '90s and was beloved by teens everywhere. Her weight fluctuated significantly, along with her presence in the music industry. Lately, however, she's been shaping up! Her secret? "I'm doing 90 minutes of yoga twice a week in addition to lots of cardio--hour-long sessions three times a week with my trainer," she told Shape Magazine in May 2013.
Funny man Vince Vaughn has also gone through some big weight changes. Muscular and fit in his younger days, the actor has let himself go recently. Though his 6'5" frame is already impressively large, we'd like to see him back in shape.
This pop singer welcomed her second child, Ace Knute Johnson, on June 30, 2013. She gained approximately 70 pounds during her recent pregnancy. Even before she had children, Jessica still struggled to maintain a healthy weight, and her battle did not go unnoticed by the public.
This dramatic singer came under fire for her weight gain in late 2012, with her looking larger during her "Born This Way Ball" tour. Her response? She posted pictures of herself proudly posing in underwear. ""I am not going to go on a psycho-spree because of scrutiny. This is who I am. And I am proud at any size," she asserted.
Best known for his Emmy-nominated role as Chandler Bing on the sitcom "Friends," this actor let himself go. His weight has notably fluctuated for years after undergoing a program in 1997 for Vicodin addiction. We miss seeing Matthew Perry at his best!
Most well-known for his two year marriage to pop icon Britney Spears, Federline gained some publicity for the couple's ensuing custody battle. The years haven't been as kind to Federline's once-admirable physique, however. He's gained a significant amount of weight since his divorce and is barely recognizable.
The incredibly influential media star is well known for her weight changes in addition to her beloved tv program, "The Oprah Winfrey Show." She remarked on her weight changes, confessing to emotional turmoil impacting her weight significantly. In 2008, she admitted she weighed 200 pounds. She has since bounced back to healthier weights.
This accomplished singer has always looked rocked some seriously stunning curves. She has also experienced difficulties with her weight, but as of lately has been kicking it into high gear. She looked incredible during her May performance on "American Idol."
Let's hope these celebrities find a way to maintain a healthy weight through a healthy lifestyle! Some are already beginning to get in better shape. Others could use a wake up call, but everyone can always improve their fitness levels with regular exercise and healthy habits.