American Idol' runner-up Justin Guarini famously dated Kelly Clarkson in the early aughts, but did you know he's married? Learn all about his wife & prior fling here! Justin and Reina on the red ...

nbsp; American Idol first-season runner-up Justin Guarini is used to pressure ... But it was in his home town in Pennsylvania that he found his wife-to-be. "We've known each other since we ...