Wikipedia reports:Upton attended a casting call in Miami for Elite Model Management in 2008 and was signed by them the same day. She eventually moved to New York City, where she then signed with IMG Models.
Upton first modeled for Damien Haumpy Garage, then Dooney & Bourke. She is the 2010–2011 face of Guess. In 2011, Upton appeared in the Sports Illustrated Swimsuit Issue. She was featured in the body paint section and named Rookie of the Year for the issue. She has since modeled for Beach Bunny Swimwear and Victoria’s Secret, and has appeared in Complex and Esquire as “The Woman of the Summer”.
In April 2011, an internet video of her doing the dougie hip-hop dance at a Los Angeles Clippers game went viral and served to increase her popularity.On April 30, 2012, a bikini-clad Upton performing the “Cat Daddy” by The Rej3ctz in a video directed by Terry Richardson also went viral, amassing almost 750,000 views in the first 24 hours.
Upton’s acting debut was in the film, Tower Heist, as Mr. Hightower’s Mistress. She followed up with an appearance in The Three Stooges as Sister Bernice.
Upton, who was previously considered a swimsuit model, has recently made her way into high-fashion magazines with editorials in American Vogue and Italian Vogue, both photographed by the legendary Steven Meisel. A recent accolade was landing the November 2012 cover of Italian Vogue.