The Kate Upton Effect: America’s Favorite Bombshell What does it take to be America’s favorite bombshell? Killer curves, of course, but Kate Upton has much more: old-fashioned ambition, digital-age savvy, and personality to burn. It’s 11:00 a.m., and Kate Upton is staring down a green rubber stability ball at David Kirsch’s private gym across from […]