An Invitation to the Best Parties of 2015\nThe true sign of a great party is a great party photo cuddling up to Karl Lagerfeld to Jaden Smith teaching Kim Kardashian how to take a selfie.\nPoppy Delevingne and Anna Cleveland celebrate Eva Cavalli's birthday. \n\nPhoto by Dylan Don.\nAnna and Pat Cleveland dancing at Marc Jacobs's party at the Tunnel. \n\nPhoto by Sherly Rabbani.\nKarl Lagerfeld and Rihanna celebrate the opening of Fendi's New York flagship store. \n\nPhoto by Patrick McMullan.\nJaden Smith, Kourtney Kardashian, Kim Kardashian West and Willow Smith at Olivier Rousteing's birthday party. \n\nPhoto by Stefanie Keenan/Getty Images for Apple.\nJeremy Scott and Madonna in Moschino at the 2015 Met Gala. \n\nPhoto by Sherly Rabbani and Josephine Solimene.\nKaren Elson, Bella Hadid and Stella Maxwell attend the Love Magazine Miu Miu London Fashion Week party at Loulou's. \n\n Photo by Dave Benett.\nDan Catenacci, Jennifer Lopez and Dean Caten at the American Music Awards after party. \n\nPhoto by Getty Images.\nFrancesco Brunetti at Jeremy Kost's book launch. \n\nPhoto by BFAnyc.com.\nGigi Hadid and Naomi Campbell at Lucien Smith’s Macabre Suite, a one night only art installation in the Bronx. \n\n Photo by bfanyc.com.\nLife Ball 2015. \n\nPhoto by Ellen von Unwerth.\nFetty Wap at his album listening party. \n\nPhoto by Getty Images.\nKylie Jenner and Tyga at Alexander Wang's Spring 2016 after party. \n\nPhoto by BFAnyc.com.\nAll in leopard at the Charlotte Olympia Spring 2016 dinner during London Fashion Week. \n\nPhoto by Dave Benett.\nRihanna attends the Up & Down x Fashion Week party.\nThe Backstreet Boys at the H&M x Balmain fashion show. \n\n Photo by BFA.com.