With everyone from Kylie Jenner to Jennifer Lopez and Blake Lively attending the event, the red carpet was always going to be a standout - think, see-through, sparkles and a lot of skin.
Below, all the must-see looks so far.
Karlie Kloss
Shanina Shaik
Ariana Grande
Shay Mitchell
Olivia Munn
Rita Ora
Winnie Harlow
Cardi B
Millie Bobby Brown
Anna Kendrick
Blake Lively
Kylie Jenner
Jennifer Lopez
