Blog, FASHION SIZZLE EVENTS · October 18, 2015Khloe Kardashian – Cosmopolitan 50th Birthday Celebration Khloe Kardashian , along with her familyattended the Cosmopolitan’s 50th Birthday Celebration at Ysabel on October 12, 2015 in West Hollywood, California. She wore a long sleeve black gown with a front thigh slit and a plunging neckline.