Kourtney Kardashian arrived in Los Angeles on Tuesday, after attending a gala dinner in honor of her late father in New York City. The mother of three was photographed sporting Yeezy sweat pants, clearly as a sign of support of her brother-in-law, Kanye West, who was hospitalized on Monday.

The 37-year-old reality star was accompanied by her mom, Kris Jenner, and Corey Gamble.

EXCLUSIVE: Kim Kardashian ‘Terrified’ After Kanye West’s Hospitalization

The family had been in New York City to attend the Angel Ball on Monday night, a black-tie event honoring the late Robert Kardashian.

Kim Kardashian was scheduled to attend the soiree, which was supposed to be her first public appearance since being robbed at gunpoint in Paris, but quickly cancelled to be with her husband.

"Kim was terrified," a source told ET. “She was so scared when she heard the news and rushed to be by his side. There was no question about her staying in NYC. She had to be with him.

EXCLUSIVE: John Legend Says Kanye West Has ‘Been Through a Lot’

The source claimed that Kanye was at the home of his trainer and close friend, Harley Pasternak, on Monday, when he was convinced to go to the hospital for "his own well-being and safety."

For more on West, watch the video below.