Kendall Jenner had her 20th birthday celebration at the Nice Guy venue in Hollywood on Monday evening in a black plunging backless jumpsuit. Kourtney,Kim,Khloe,Kylie,Kris,Tyga,Kanye,Nick Jonas,Jaden and Willow Smith were in attendance. More photo below… Related Posts:Kar-Jenner sisters dress as Kris Jenner for her BirthdayRihanna and A$AP Rocky's boujee birthday party styleKendall Jenner debut new hairKendall […]