Kelly Clarkson has been ‘feeling so confident’ in her classy new makeover since hitting her weight loss 'goal,' a source ...

Kelly Clarkson's recent 40-pound weight loss was aided by a non-disclosed injection to improve her health. The singer emphasized that she also follows a protein diet recommended by her doctor for ...

Kelly Clarkson lost 37 lbs ... disease that I had and I had a thyroid issue,” Clarkson explained. A source adds to PEOPLE that “weight loss wasn’t the goal,” for the mom of two.