Kate Upton: Club 'SI Swimsuit' Party!

Kate Upton arrives at the Club Sports Illustrated Swimsuit party held at Pure Nightclub at Caesars Palace on Thursday (February 16) in Las Vegas.

Joining the 19-year-old cover girl were fellow models Irina Shayk, Anne V, Chrissy Teigen with fiancé John Legend, Nina Agdal, Izabel Goulart, Jessica Gomes, Alyssa Miller, and singer Bruno Mars.

PHOTOS: Check out the latest pics of Kate Upton

Anne is wearing a Anthony Vaccarello dress and Giuseppe Zanotti shoes.

Chrissy arrived in a Elizabeth and James dress, Prada shoes, and Ferragamo clutch.

Nina, 19, who wore a Boulle dress and Steve Madden shoes, had bodyguards with her all night because she is underage and wasn’t allowed alcohol near her all night.

20+ pictures inside of Kate Upton and others at the Club SI Swimsuit party…