Sports Illustrated's Kate Upton posed together with her illustrious new magazine cowl at Las Vegas's Pure Nightclub yesterday. She's the lucky woman fronting the annual Swimsuit Edition, following within the footsteps of last year's model Irina Shayk. The winner was revealed Monday, when Kate's attractive Times sq. billboard was unveiled throughout The Late Show. Since then, Kate's been on the go together with Chrissy Teigen and Anne V. For last night's party at Pure, Chrissy was joined by her fiancé, John Legend. Kate hit the bash solo, however she could also be off the market. Kate Upton's dating Mark Sanchez, the Jets quarterback, in line with reports. She hasn't confirmed the stories however did say that "he is cute" whereas chatting with Ellen DeGeneres recently.