LAS VEGAS, NV - SEPTEMBER 23: Singer Kelly Clarkson performs onstage at the iHeartRadio Music Festival held at the MGM Grand Garden Arena on September 23, 2011 in Las Vegas, Nevada. (Photo by Christopher Polk/Getty Images for Clear Channel)
Kelly Clarkson has been known to gain weight and then lose it really fast…Well her recent weight loss was done for a great reason. She told Cosmopolitan: "I lost 18 pounds and I think that happens when you fall in love or date someone. If I'm going to be messing around, I gotta look good." …..Ok don’t most people GAIN weight when they fall in love?? As for her diet secret this time around: She says its her trainer and she even has a catchy name for her!