Kylie Jenner shuns all-black family dress code as she joins Kim, Khloe, Kourtney and Kris at Cosmopolitan bash
Kris, Kim, Khloe and Kourtney evidently collaborated on their outfits for the Cosmopolitan 50th birthday party - but baby of the family Kylie Jenner was intent on standing out.
The famous family are currently on the cover of the iconic American magazine for the first time in ten years.
To celebrate the publication's 50th anniversary party, the well-known clan stepped out in force.
Noticeably absent was 19-year-old Kendall, who had a whirlwind few weeks stalking the runways in New York, Paris and Milan.
Pregnant Kim (34) chose to wear a figure hugging black jersey dress and a blazer, despite the hot Los Angeles temperatures. The mum-of-one recently said she is feeling self conscious about her arms, and has taken to covering them up. She also accessorised with a black rope collar by one of her favourite labels, Balmain, worth a staggering €2,500.
Newly single Kourtney (36) showed off her post-baby figure in a black jumpsuit, which was nipped in at the waist.
The elegant outfit also showcased her toned arms - a result of her increased fitness regime and organic diet post split with Scott Disick
The petite star also swears by using a waist trainer - a controversial corset-shaped apparatus that promises to deliver hourglass curves.
In the wake of her split with her long-term partner Disick, Kourtney also admitted she has been getting beauty tips from her youngest sister, Kylie.
The 18-year-old runs her own beauty blog and is no stranger to highlighting her best assets for the camera.
Also out to celebrate for the magazine's major birthday were actresses Sarah Hyland and Ashley Tisdale, presenter Kelly Osbourne, singers Leona Lewis and Cody Simpson and dancer Julianne Hough.