Sports Illstrated swimsuit model Kate Upton arrives for a party at LAX Nightclub in Las Vegas in February, 2011.

Kate Upton poses backstage at the Beach Bunny Swimwear show during Mercedes-Benz Fashion Week Swim 2012 in Miami Beach in July, 2011.

Kate Upton walks the runway at the Beach Bunny Swimwear show during Merecdes-Benz Fashion Week Swim 2012 in Miami Beach in July, 2011.

Kate Upton walks the runway at the Beach Bunny Swimwear show during Merecdes-Benz Fashion Week Swim 2012 in Miami Beach in July, 2011.

Kate Upton attends Heidi Klum’s 12th annual Halloween party at the PH-D Rooftop Lounge at Dream Downtown in New York City in October, 2011.

Kate Upton arrives at Bette Midler’s Annual ‘Hulaween’ Gala to benefit the New York Restoration Project held at the Waldorf-Astoria Hotel in New York in October, 2011.

Sports Illustrated’s Swimsuit Issue’s Rookie of the Year Kate Upton becomes the face of lingerie giant Bare Necessities in 2011.

Model Kate Upton poses for photos at the “Late Show With David Letterman” taping at the Ed Sullivan Theater in New York City in February, 2012.

Sports Illustrated Swimsuit Issue cover model Kate Upton attends the 2012 Sports Illustrated Swimsuit Issue launch party at Crimson in New York City in February, 2012.

Sports Illustrated swimsuit model Kate Upton arrives for SI on location red carpet event at Haze Nightclub at the Aria Resort & Casino in Las Vegas in February, 2012.

Kate Upton attends the 2012 Vanity Fair Oscar Party at Sunset Tower in West Hollywood in February, 2012.

Kate Upton walks the runway during parade of Spring – Summer 2012 at Department Store Liverpool in Mexico City in March, 2012.

Kate Upton walks the runway during parade of Spring – Summer 2012 at Department Store Liverpool in Mexico City in March, 2012.

Kate Upton shows off her curves as she joins US audio brand Skullcandy’s “Supermodel Crew” in March, 2012.

Kate Upton arrives at amfAR’s Cinema Against AIDS Gala 2011 at Hotel Du Cap at Hotel Du Cap in Antibes, France in May, 2012.

Model Kate Upton celebrates Fashion’s Night Out at Michael Kors in New York City in September, 2012.

Kate Upton attends the 50th New York Film Festival screening of ‘No’ at Alice Tully Hall at Lincoln Center in New York City in October, 2012.