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SI Swimsuit Model Kate Upton attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Genevieve Morton attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Hannah Davis attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Rapper Pitbull performs at Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Sports Illustrated swimsuit model Katherine Webb attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Nina Agdal attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Adaora attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Sports Illustrated swimsuit model Kate Bock attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Sports Illustrated swimsuit model Chrissy Teigen attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Sports Illustrated swimsuit model Cintia Dicker attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Sports Illustrated swimsuit model Alyssa Miller attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Nina Agdal attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Sports Illustrated swimsuit model Kate Bock attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Kate Upton attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Julie Henderson attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Rapper Pitbull performs at Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Sports Illustrated swimsuit model Cintia Dicker attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Sports Illustrated swimsuit model Anne V attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Jessica Perez attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Ariel Meredith attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Jessica Gomes attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Sports Illustrated swimsuit model Cintia Dicker attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

Sports Illustrated swimsuit model Alyssa Miller attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Adaora attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

SI Swimsuit Model Kate Upton attends Club SI Swimsuit at 1 OAK Nightclub at The Mirage Hotel & Casino on February 14, 2013 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)