Jennifer Hudson said losing weight is something you have to do for yourself, even if it means ignoring other people's opinions.
"The key about losing weight: You have to do it for you," Hudson told People. "It's about you. You have to want to do it. And you can't let what everyone has to say overshadow what you want for you."
Jennifer was accused of getting too thin after her dramatic weight loss in 2010, so she empathizes with "The Biggest Loser" winner Rachel Frederickson's anorexia controversy.
Hudson lost 80 pounds in nine months by following a portion-controlled Weight Watchers diet and working out up to six days a week doing an hour of cardio and another hour of resistance training. She has since maintained the weight loss by sticking to her Weight Watchers plan (for which she's a paid rep).
"[My diet secret is] tracking my points – sticking with the plan with Weight Watchers," said Jennifer. "That's what I try to do and take it with me everywhere I go."
Hudson, who shot to fame after finishing third on "American Idol" in 2004, had never exercised until after she gave birth to son David Otunga Jr. in 2009. She began working out slowly, by walking 30 minutes a day, and gradually worked her way up to longer workouts that included running and strength-training.
Jennifer is happy with her weight now, and said she also loves her new short hairdo. "I'm still finding my niche with it and having fun with it," she said. "I'm like, 'I like this short thing.' I'm just embracing it."
Hudson revealed her weight-loss secrets in her memoir, I Got This: How I Changed My Ways and Lost What Weighed Me Down.