Simpson's got the right stuff in a pair from her own denim line in N.Y.C. Plus: Tom & Katie, Nicole Richie, Taylor Swift and more

WIFE SWAP

And who's the lucky guy? Tim McGraw, who is flanked by Faith Hill and his The Blind Side spouse, Sandra Bullock, at Tuesday night's Nashville Rising: A Benefit Concert for Flood Recovery, where the Oscar winner delivered a surprise serenade.