American Idol Shania Twain to serve as guest judge for 'American Idol' auditions 08/18/2009 Powered by Mochila Read More RELATED NEWS Kelly Clarkson reunites original 'American Idol' judges Simon Cowell, Paula Abdul and Randy Jackson'American Idol' was "one of the worst decisions I've ever made," says former judge Ellen DeGeneresCrystal Bowersox and husband Brian Walker announce divorce TAGS: American Idol Shania Twain
