Kelly Clarkson Looks Even Thinner at MuchMusic Video Awards!

Kelly Clarkson onstage at the 2012 MuchMusic Video Awards in Toronto, Canada.  O'Neill/White/INFphoto.com

Kelly Clarkson is back and better than ever, in more ways than one!

At Sunday's MuchMusic Video Awards in Toronto, the 30-year-old singer showed off her whittled waistline in a body-conscious graphic print dress featuring black side panels, which she accessorized with a Litter bracelet. Clarkson — who recently shed 30 pounds — performed her latest hits, "What Doesn't Kill You (Stronger)" and "Dark Side," and mingled with 90210's Shenae Grimes, 22, backstage.

Kelly Clarkson and Shenae Grimes
Kelly Clarkson and Shenae Grimes at the MuchMusic Video Awards in Toronto, Canada.<br /> O'Neill/White/INFphoto.com

Clarkson dropped several dress sizes thanks to a five-days-a-week training schedule and a portion-control diet. "She feels better about herself than she ever has," a source recently told Us Weekly.

The Duets mentor and original American Idol enlisted the help of her boyfriend Brandon Blackstock's Tennessee-based trainer, Nora James. "I call her Chuck Nora because she is like G.I. Jane. . . hard-core," Clarkson has raved. Despite their sweat-inducing cardio and weight-lifting sessions, Clarkson says the pro "makes it fun."

Clarkson is embracing her new shape, but she's happy at any size. "What I've figured is this: As long as I'm healthy and happy, cool. I'm just me — take it or leave it," she says. "And personally, I think I'm looking good!"

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