American Idol Kelly Clarkson announces engagement to Brandon Blackstock 12/15/2012 Kelly Clarkson is now off the market. Read More RELATED NEWS 'American Idol' Season 1 finalist Nikki McKibbin dies at age 42 Kelly Clarkson says her weight reflects her happiness -- "It's when I'm fat that I'm happy"Kelly Clarkson: "I wanted to kill myself" when I was "really skinny" TAGS: American Idol Duets Kelly Clarkson Reba McEntire Clive Davis