Close encounters of the ego kind as  Liza Minelli meets Kanye West!

RadarOnline.com reports Liza with a Z and Kanye West, famed for rapping and being the butt of South Park’s Gay Fish show collided with a bang at Paper Magazine 25th anniversary party at Manhattan’s famed Public Library.

And when celebs with king sized egos clash so do their handlers, a spy-witness divulged.

"Liza’s guy was a small guy, and this bodyguard was huge," the spy told Radar.

"The guy kept going on about how Liza would be honored to meet Kanye, but they needed to go right then.

"The guard wasn’t budging, and even called him ‘little man’ when telling him to wait."

CLICK HERE to learn what happened as Kayne’s and Liza’s titans CLASHED!