Kelly Clarkson is looking better than ever lately and she chalks up her weight loss to falling in love!

Some people get a little too comfortable when they begin a serious relationship, but Clarkson takes the exact opposite view when it comes to her romance with fiance Brandon Blackstock. She told Cosmo, "If I'm going to be kissing or messing around, I gotta look good." There's no better philosophy than that!

The 'Since U Been Gone' singer lost 18 pounds in a month simply by halving her portions, ceasing her late night snacking and upping her workout time. She even took her trainer on the road with her!

Love is good for many reasons and for Kelly, it was the kick in the pants she needed to get healthy! Go girl!

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