Kourtney Kardashian and Khloe Kardashian dazzled on the red carpet on Monday.

The 37-year-old and 32-year-old sisters amd "Keeping Up with the Kardashians" stars attended the 2016 Gabrielle's Angel Foundation Angel Ball with mom Kris Jenner and her boyfriend, Corey Gamble, at Cipriani Wall Street in New York.

Kourtney turned heads in a strapless black dress with sheer panels that left much of her legs exposed. Khloe also chose a revealing number, wearing a see-through gown with sparkling embellishment.

Kourtney, Khloe and Kris attended the charity event amid news of Kanye West's hospitalization.

Word broke the same day that the rapper, who married Kim Kardashian in 2014, was being treated for "exhaustion" after cancelling the remainder of his Saint Pablo tour.

Kim, who has kept out of the spotlight since being robbed at gunpoint Oct. 2 in Paris, was to have made her first post-robbery appearance at the Angel Ball.

She instead "rushed" from New York to Los Angeles to be with Kanye, according to Us Weekly.

"She's [taking things] one step at a time," Kris said of Kim to "Entertainment Tonight" at the gala. "It's a process."

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"I think he's exhausted. Just really tired," she added of Kanye. "It's a grueling tour."

The Kardashians and Jenners came to fame on "Keeping Up with the Kardashians," which airs Sundays at 9 p.m. ET on E!.

Kourtney made headlines last week after news broke that she and ex-partner Scott Disick are reportedly living together again.