Irina Shayk, Cristiano Ronaldo’s girlfriend, might be the 2011 Sports Illustrated Swimsuit cover model. According to Hollywood Life, David Letterman’s show was taped earlier today, and this gigantic banner revealed the SI Swimsuit cover in Times Square. Unless, of course, this is just a fake cover. [UPDATE: Here's the full cover, via this girl.] Classic Letterman misdirection? Who knows. This is what the party looked like backstage.