Gallery: Beyoncé And Jay-Z: All The 'Crazy In Love' Photos Of The Couple (ELLE (UK)) Justin kept the night going after the Met Gala concluded as he hosted an after-party at Webster Hall in the city too, with guests including Kim Kardashian, Shawn Mendes, Camila Cabello, and Kaia Gerber. This year marks the first time the pop star has performed at the event, the first time he has attended since 2015, and therefore the first time he has attended with Hailey.