Kate Upton: 'Sports Illustrated' Behind-the-Scenes Bikini Video!

Kate Upton flashes a smile as she heads out with a male pal on Tuesday (July 9) in the Tribeca district of New York City.

A behind-the-scenes video of the 21-year-old model doing her Sports Illustrated Swimsuit cover in Antarctica was recently released by the magazine!

“Kate is superhuman. She’s insane,” one worker on the set said in the video about her ability to pose in the freezing temperatures in her swim wear!

Be sure to check out Kate rocking her bikini on the cover of the famed issue in case you missed it.