Jimmy Kimmel celebrated twenty years of “Jimmy Kimmel Live!” With original guests George Clooney and Snoop Dogg. Of course, the big anniversary bash also included a dig at “frenemy” Matt Damon!

After seeing Kimmel bump him from the show, Matt threw a tantrum, saying, “What the actual f**k.”

Matt and Jim have been in a fake feud for years!

“Extra’s” Jenn Lahmers spoke with Jimmy, who admitted that he “did not” imagine hosting the show for 20 years.

Kimmel has had plenty of A-list guests, but how well does he know his guests?

Jenn quizzed him on special guests in a game of “Guess the Guest.” He had to answer who arrived at his home at 1 a.m., as well as the actor who played a Christmas prank on him.