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Jillian Michaels refuses to back down after making negative comments about morbidly obese pop singer Lizzo, 31. Twitter dragged the celebrity fitness trainer after she asked: "Why are we celebrating her body?"

She made the comments during an appearance on BuzzFeed's AM to DM series. When the conversation turned to Lizzo's weight, Michaels said, "Why does it matter That's what I'm saying. Like why aren't we celebrating her music? 'Cause it isn't gonna be awesome if she gets diabetes."

The fitness guru continued: "I'm just being honest. I love her music, my kid loves her music, but there's never a moment when I'm like, 'I'm so glad she's overweight.' Why do I even care? Why is it my job to care about her weight?"

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Michaels, pictured with her adopted daughter, is the 2nd public figure to criticize the "Truth Hurts" singer for glamorizing obesity.

Dr. Boyce Watkins caught heat for saying Lizzo is popular due to "America's obesity epidemic."

The response to Michaels' comments was immediate. Fans and celebrities slammed the openly lesbian trainer.

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