When Gigi wasn't goofing off with Kendall, she was cuddled up to her beau Joe. The 26-year-old singer was even seen tenderly kissing his 20-year-old girlfriend on the forehead as she leaned on his shoulder.
The models were quite stylish for the big event. While Joe kept it casual in a printed t-shirt and jeans, Gigi went Western chic with a bright scarf, a denim shirt and skinny jeans.
Kendall went for a sexier style, stepping out in a fuzzy, white crop top and a matching miniskirt.
Joe and Gigi have accumulated quite the squad since getting together earlier this summer. In August, the former boy band member's 26th birthday party had a slew of stars on the guest list, including Joe's ex Taylor Swift, his brother Nick Jonas and Kendall.