Since the birth of her third child in December, reality star Kourtney has rarely been seen out and about, preferring to stay home with her kids.
On Saturday night, however, she was among the stars that attended the taping of The Comedy Central Roast of Justin Bieber in Los Angeles.
Kourtney, 35, looked fabulous in her quirky tuxedo-eseque monochrome dress, while sister Kendall, 19, was casual in an off-the-shoulder jumper and black pencil skirt.
The girls are known to be friends of Bieber, who agreed to be roasted by the likes of Kevin Hart, Ludacris and Will Ferrell. The comedy show – which basically threw Justin under the bus and poked fun at all the mistakes he's made – will air later this month.
Kevin opened the show by saying: "Tonight we're going to give what his parents and the legal system should have done years ago, we're going to give this boy an ass-whoopin'.
"Orlando Bloom took a swing at you, you have a perfume called Girlfriend, you threw eggs at a house - not gangsta. The man proves we're protecting the wrong border."
Why is Kendall famous? Find out below!
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