Moments after President Trump and the North Korean leader signed documents outlining their framework for future peace talks, the basketball great - who traveled to Singapore for the historic summit - called Kim "a great guy".
"When I got home (from North Korea in 2014), I got so many death threats. I'm so happy just to be here, man, and see the whole world get as emotional as I did", he said.
Rodman visited Kim in North Korea again past year while "trying to open a door" for Trump, even giving Kim a gift: Trump's book, "The Art of the Deal". I think that if President Trump goes in there with a great heart, with his heart on the table and let Kim Jong-un see him really emotional ... it ain't got to be about war, it ain't got to be about hatred or what happened in the past.
"Obama didn't give me the time of day", Rodman said.
"But I kept my head up high, brother". Kept going back. I showed my loyalty and my trustworthiness to this country. I knew it, I was the only one. I was the only one. "I'm so happy", wiping away tears from beneath a large pair of black sunglasses.
North Korea and the U.S. appear to be warming up relations after spending most of 2017 on the brink of nuclear war.
"I asked him. I said I have something to say from North Korea and he just brushed me off".
However, he said, every time he has met Mr Kim, it has been a surprise, so maybe he would be surprised again on Tuesday.
"It's a great day".
Trump landed in Singapore a little after 8:30 p.m. local time for the highly-anticipated meeting with the North Korean leader, which is set to take place on Tuesday.
After the two leaders shook hands and parted ways, Trump told reporters there would be many more meetings and that he's open to inviting Kim to The White House.
"I think that country is normally hearing people who are always lying, deceitful and not trustworthy". At the time, Pyongyang had successfully launched a rocket and the UN Security Council voted to expand penalties against Kim's government.