Jordin Sparks weight loss proves 'American Idol' star's 'undiet' wins the prize

Jordin Sparks became the youngest "American Idol" winner at 17 (sixth season) and she's also won some personal battles with the scale. But America's sweetheart didn't do it with diet. Sparks used an "undiet" (kind of like Adele and Rebel Wilson, recent big weight losers) to effect a 50-pound weight loss. Recently appearing at a RIF (Reading is Fundamental) charity gig, Jordin looks as if she may have gained a bit back. But no matter--her happy, healthful glow proves sensible eating habits and body image, plus boatloads of positivity trump jeans size.    Jordin Sparks weight loss proves 'American Idol' star's 'undiet' wins the prize