Kate Upton vs. Katherine Webb -- Who'd You Rather?
Kate Upton vs. Katherine WebbWho'd You Rather?
2/12/2013 8:20 AM PT
It was a battle of the super babes as Sports Illustrated cover girl Kate Upton and A.J. McCarron's overnight sensation GF Katherine Webb -- who also appears in the S.I. swimsuit issue -- brought their gorgeousness to David Letterman in NYC on Monday.