updated 10/29/2013 AT 12:10 PM ET
•originally published 10/29/2013 AT 10:00 AM ET
On Monday, the Kardashian family showed their support for Kim Kardashian’s fiancé at his Staples Center show in Los Angeles – and Odom made an appearance.
“Lamar walked into the arena to huge cheers,” an onlooker tells PEOPLE. “He came in with Khloé, Kris [Jenner], and the whole crew, Kim included.”