Opening Ceremony + Calvin Klein Jeans Celebrate The Launch Of The #mycalvins Denim Series With Special Guest Kendall Jenner

(L-R) Musicians Alana Haim of Haim, Jhene Aiko and Danielle Haim of Haim attend Opening Ceremony and Calvin Klein Jeans' celebration launch of the #mycalvins Denim Series with special guest Kendall Jenner at Chateau Marmont on April 23, 2015 in Los Angeles, California.
(April 22, 2015 - Source: Chris Weeks/Getty Images North America)