Gigi & Bella Hadid Party With Serena Williams at YouTube Fashion Launch

Gigi Hadid gets smushed in a hug with sister Bella, Serena Williams and Derek Blasberg at the launch of YouTube.com/Fashion on Monday night (September 9) in New York City.

The 24-year-old model was also joined inside the event by Jennifer Lawrence, Kendall Jenner and fellow models Lily Aldridge, Doutzen Kroes, Candice Swanpoel, Sara Sampaio, Delilah Belle Hamlin, Karlie Kloss, Ashley Graham, Joan Smalls, and Lais Ribeiro, among others.

PHOTOS: Check out the latest pics of Bella Hadid

Earlier in the day, Bella and Gigi were spotted heading to a fitting appointment at the Marc Jacobs‘s offices after attending a couple of fashion shows the night before, including TommyxZendaya‘s new collection launch.

Check out 30+ pictures inside of Bella and Gigi Hadid at the YouTube Fashion launch…