LAS VEGAS, NV - APRIL 30: Model Gigi Hadid attends her 21st birthday celebration at Mizumi at Wynn Las Vegas on April 30, 2016 in Las Vegas, Nevada. (Photo by David Becker/Getty Images for Wynn Las Vegas)
LAS VEGAS, NV - APRIL 30: Model Gigi Hadid attends her 21st birthday celebration at Mizumi at Wynn Las Vegas on April 30, 2016 in Las Vegas, Nevada. (Photo by David Becker/Getty Images for Wynn Las Vegas)