Entertainment TV Kris Jenner to Celebrate 60th Birthday with Fabulous 'Great Gatsby' Party – Will Rob Kardashian Come? About 250 guests will attend the lavish bash, a source tells PEOPLE By Michele Corriston Michele Corriston Michele Corriston is the Director of Platforms Strategy of PEOPLE. She has worked at PEOPLE since 2014. People Editorial Guidelines Published on November 6, 2015 01:20 PM Share Tweet Pin Email Photo: Sipa The Kardashian kids are throwing their momager a birthday bash worthy of the roaring ’20s. Kris Jenner will celebrate turning 60 with a Great Gatsby-themed party in the Los Angeles area with about 250 guests Friday night, PEOPLE has learned. Daughters Kourtney Kardashian, Kim Kardashian West, Khloé Kardashian, Kendall Jenner and Kylie Jenner have been planning the f te for months, a source says. Although reclusive son Rob Kardashian is listed on the glamorous invitation, his presence remains ucertain, another source close to the family tells PEOPLE. “Rob is thinking about coming to Kris’ party. She would love nothing more than to have all her kids together,” the source says. “It will be a last-minute decision for Rob. But he knows how much everyone wants him to be there.” Rob, 28, did post an effusive Instagram in honor of his mom’s birthday Thursday. “”MAMA I LOVE YOU!! P. O. P. Holding it down…. HAPPY BIRTHDAY TO MY BEAUTIFUL MAMA,” he wrote alongside an old photo of him and Kris. • Reporting by AILI NAHAS and ELIZABETH LEONARD