Carrie Underwood won American Idol 16 years ago, in 2005. On the outside, it looked as though she was living her best life, but in an interview with PEOPLE, she revealed that she wasn't happy with her weight. "I knew that I weighed more than I had ever weighed before," she said. "Then as soon as you start making little tweaks, people immediately start saying, 'You look so great!' Then you start wondering, 'How bad did I look before?' Then it's like, 'Well I guess I should keep on going'.
Then you start eating less." MORE: Carrie Underwood's $3M estate with husband Mike is 400 acres of perfectionWATCH: Carrie Underwood shares special message with fansShe admits that at the time, this meant she turned to weight-loss supplements.Read more on hellomagazine.com