As we reported Lamar flew from L.A. Wednesday night to attend the unveiling of Kanye's new album and fashion line.
The Kardashians came into the arena -- all wearing white -- under a spotlight, but the big moment was reserved for Lamar.
Kanye walked Lamar to his seat and then took the stage.
The Kardashian clan was out in full as well ... sitting right near the front with some of their super famous friends.
As for Lamar -- he had a slight limp but walked the stairs just fine.
As far as the lyrics ... Kanye had some pretty interesting things to say worked into his songs ... mentioning Taylor Swift, Blac Chyna, Rob Kardashian and Ray J.
For Ray J, Yeezy rapped, "I bet me and Ray J woulda been friends, if we hadn't loved the same bitch. Ya, he might have hit it first. Only problem is, I'm rich."
When it came to Blac Chyna and Rob, one song said, "Blac Chyna f***ing Rob, helping him with the weight. Wish my trainer would tell me what I overate."
And finally, for Taylor, "I feel like me and Taylor might have had sex, I made that bitch famous."
The Kardashian sisters certainly seemed to enjoy his song with Rihanna.
Not far from the K Krew ... Gigi and Bella Hadid, Lil Kim, and fashion maven Anna Wintour watched. As usual, hard to get a read off Anna in those shades.