Kelly Clarkson looked amazing at the Billboard Music Awards, showing off a 40 pound weight loss!

Kelly showed off her stunning slim figure while performing her new single, Dark Side, during the awards show.

How did Kelly lose the weight? With a tour and her show Duets coming up, she's a busy woman, for sure, but she's obviously made a big effort to shed the pounds.

Weight expert and author of The Accidental Diet: From Fugly to Fox, Alicia Hunter, tells HollywoodLife.com, "Kelly looks to have lost about 40 pounds," adding, "Her arms are a far, slimmed-down cry from her earlier picture and her face looks more defined too! She's also shed several inches from her waist."

In a word, Kelly looks great!

Alicia believes that Kelly is eating better, following a low-calorie meal plan, and doing a cardio workout.

Kelly's new series, Duets, premieres May 24 on ABC.



Gallery | 2012 Billboard Music Awards
Share on Facebook Share on Twitter

MORE CELEB SCOOPS