Prime Minister Lee Hsien Loong announced this on Sunday, adding that the June 12 summit will give Singapore global publicity and demonstrate the country's standing in the worldwide community.
USA allies are anxious that Trump could upend decades of worldwide precedent, NPR's Mara Liasson reported on Weekend Edition Sunday.
After more than a day's silence on Twitter, Trump posted four tweets about trade disagreements that were the talk of the G-7 conference, followed by a quick mention of the summit he is now attending - writing "Great to be in Singapore, excitement in the air!" - before turning back to tweeting about trade once more.
Trump hopes the landmark talks will kick-start a process that eventually see Kim give up his nuclear weapons in an irreversible manner that can be verified internationally.
Kim began the year by declaring to the world that "a nuclear button is always on the desk of my office", which was widely interpreted as an allusion to his personal control over North Korea's nuclear arsenal.
Sung Kim, a former U.S. ambassador to South Korea who has been leading the USA in talks with North Korean Vice-Foreign Minister Choe Son Hui since last month, is said to be continuing the discussions with his counterpart in Singapore.
While the White House update detailed the size of the meeting, the expected length of the meeting hasn't been released.
Kim toured Singapore's nightlife on Monday evening.
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"The senior officials of the party and government sincerely wished Kim Jong Un good successes in the first summit meeting and talks between the DPRK and the USA and his safe return", the KCNA said.
A smiling Kim Jong Un has been pictured enjoying a late-night stroll in Singapore ahead of his landmark meeting with Donald Trump.
Exuding confidence, Trump said he has done relatively little formal preparation.
Ahead of his much-anticipated meeting with Kim, the US President sounded optimistic and said the meeting would be a "one-time shot" at peace.
North Korean leaders, who have been subject to some of the world's toughest ever sanctions, have long wanted to meet with the USA president, in part because of the global legitimacy such a summit would provide.
Pompeo, who was in Singapore, did not go into specific details about how the USA would secure the country, but he said talks between the US and North Korea are moving briskly.
"No", he said, "I don't feel unsafe".
Commuters read news of Kim Jong-un's arrival in Singapore, at a train station in Pyongyang. And the maximum, I think you know the answer to that.
Korea talks moving quickly, Trump to leave early
Trump couldn't afford to show any weakness before his meeting with North Korea . Of this, half is on security, Prime Minister Lee Hsien Loong said on Sunday.