The original 'American Idol' knows she's got a substantial tush, and she's more than okay with it. Kelly Clarkson admits to Now magazine, "I'm a fan of my butt." The 'I Do Not Hook Up' singer says, "I totally have no chest, I'm all butt. Ever since I was a kid I've had a bubble butt - I get it from my mama. Guys are usually like, 'Oh my gosh, look at that butt!" In a good way!'"