Following the Islamic prayer service for Ali's family, friends and fans headed to the KFC Yum! Center in Louisville, Kentucky, on Friday to pay tribute to Ali.
Crystal, 68, recounted funny moments he had with the boxer and explained how much his friend of 42 years really meant to him at the tribute ceremony, reported Ace Showbiz.
"Today, this outpouring of love and respect proves that 35 years after he stopped fighting, he is still the champion of the world. Last week, when we heard the news, time stopped. There was no war. There was no terrorism...The world stopped, took a breath, and sighed," Crystal said.
Crystal then talked about his friendship with Ali, recalling moments when he first knew him.
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Crystal was hired to perform at an event honoring Ali in 1974, in which he debuted his Ali skit.
"Here I was a white kid from Long Island imitating The Greatest of All Time- and he was loving it," he said, adding that Ali gave him a hug after his performance and whispered in his ear, "You're my little brother.
"To live in his time, watching his fights, experiencing the genius of his talent was absolutely extraordinary. He was funny, he was beautiful, he was the most perfect athlete you ever saw and those were his own words. But he was so much more than a fighter."
Crystal concluded his touching eulogy by saying, "But didn't he make all of our lives a little bit better than they were? He was a tremendous bolt of lightning, created by mother nature out of thin air, a fantastic combination of power and beauty."