"Jimmy Kimmel Live" aired a 3-minute tribute to Rickles, who died of kidney failure at his Los Angeles home. The comedian was 90 years old.
Don Rickles, king of insult comedy, dead at 90
At times, Kimmel laughed at the memory of Rickles on the show, at other times he wept.
It was abundantly clear to people on social media that this was an extremely difficult moment for Kimmel, who expressed love and admiration for the comedic legend on Thursday night's show.
Jimmy Kimmel on Don Rickles....very human and very sad!— Commissioner Gordon (@fvsl1960) April 7, 2017
Jimmy Kimmel crying about Don Rickles through his entire opening monologue is more than I can deal with ?— nyygirl333 (@nyygirl333) April 7, 2017
"There will never be another Don Rickles, he's probably the greatest talk show guest of all time," Kimmel said, fighting back tears.
Celebrities react to Don Rickles' death
90 years with Don Rickles weren't enough. One of the sweetest and most lovely people I had the pleasure of knowing. We miss you already— Jimmy Kimmel (@jimmykimmel) April 6, 2017
IN MEMORIAM: Celebrities and notable figures who have recently passed away