PHOTOS The Kardashians celebrate French Montana’s birthday, Kim says ‘tanning is everything’

French Montana celebrated his 30th birthday this weekend with the unusual company of “ex-girlfriend” Khloe Kardashian, Kim Kardashian, Kylie Jenner and Kris Jenner.

For the party, Kylie looked a lot like Ariana Grande and Kris brought her new boy toy, 33-year-old Corey Gamble. Still, Khloe stole the show by going commando on the top and bottom. The top part resulted in a wardrobe malfunction in most of the pictures.

Kim looked like she was being a good sport, even though she had a busy weekend jetting from NYC to London and then back to Los Angeles for the party. While she was in the U.K., she spoke at the launch of Hairfinity and talked to The Daily Mail about her own beauty practices.

“Tanning is everything,” Kim said. “I tan all the time and I do the beds because I have psoriasis so it really helps with that.”

She then admitted that dealing with her psoriasis isn’t the only reason she uses tanning beds: “I just think when you tan, it makes you look so much skinnier.”

Interestingly, Kim said her biggest fashion idol is the fair-skinned Kate Moss.

“I love how she wears her winged eyeliner and her messy hair and how it looks so effortless but still put together. It looks beachy and messy at the same time,” Kim said. “I love her glamour.”

She also likes to replicate younger sister Kylie’s makeup techniques, especially when it comes to filling in her lips. (Kim recently insisted Kylie’s au naturel lips are enhanced with some serious liner.)

“I live with Kylie so every time she’s putting on her lashes or putting on her lip liner, I ask her for advice and how she does it so perfectly. She is so good at make-up.”