Video: 2012 Sports Illustrated Swimsuit Launch Party

Kate Upton is the cover girl on this year's Sport's Illustrated Swimsuit issue. Kate and the rest of the SI swimsuit models attended a special launch party for the issue at the Aria Resort and Casino CityCenter in Las Vegas. Crystal Renn, Genevieve Morton, Chrissy Teigen, Irina Shayk and Adaora Akubilo were among the models attending the event. The models wore dresses, not swimsuits, to the launch party. Crystal Renn says Kate Upton reminds her of Marilyn Monroe. Last year's SI cover model Irina Shayk says she was happy to come back and support the new cover model. Take a look: