It is also unclear whether US officials will raise human rights issues in meetings with the North Koreans. And Secretary of State Mike Pompeo sought to keep expectations for the summit in check.
Authorities have beefed up security around the hotels where Trump and Kim (Saint Regis) will be staying in central Singapore.
Trump has also raised the possibility of further summits and an agreement ending the Korean War by replacing the armistice signed in 1953 with a peace treaty.
North Korea has said it is willing to commit to denuclearisation, but it is unclear how this will be achieved or what might be requested in return.
AFP 2018 Saul Loeb World Follows Every Step of Historic Trump Kim Summit
For the first time on Sunday, North Korean state TV announced details of Kim's schedule in Singapore, describing the summit as "historic" and saying Kim would be exchanging "wide-ranging and profound views" with President Trump.
The summit, the first time a sitting USA president meets a North Korean leader, was almost called off just two weeks before the event. "This is not the fault of either Trump or Kim, but rather a reflection that intractable, decades-long strategic challenges rarely-if ever-get resolved in single encounters", Haas writes.
Still, the sense of anticipation was great in Singapore, with people lining spotless streets holding cellphones high as Trump headed to meet Lee.
Commenting on his upcoming meeting with the North Korean dictator, President Trump said he will know very quickly whether the summit is going to be fruitful.
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But the biggest disappointment for us is the lack of news of whatever Square Enix's Marvel project is going to be. Just Cause 4 was the same - a competent trailer, but one that fans had basically seen during the Xbox showcase.
Trump, asked last week if Rodman had been invited to Singapore, said, "No, he wasn't".
When Singaporean Prime Minister Lee Hsien Loong visited the global media center for the summit at F1 Pit Building on Sunday, he said it will cost the city state "around 20 million Singaporean dollars" (W16.1 billion, US$1=W1,078) to host the "historic summit".
Trump is hoping to get Kim to agree to get rid of his nuclear weapons, though he has said it may take many more meetings to get to that point.
The results from previous summits and peace talks show that getting North Korea to seriously commit to denuclearization at any level is an enormous challenge. Her earlier trip to South Korea in January triggered a media frenzy.
For both men, the summit, the first between leaders of North Korea and the United States, is likely to be a defining moment of their careers. Meanwhile, Mr Kim has called Mr Trump "mentally deranged" and a "dotard".
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I'm focusing on the national team right now'. "It's the best league with the best players, but I do not want to exclude anything".
Trump has blamed past presidents for failing to resolve tensions with North Korea as it has pursued a nuclear program, testing missiles in displays of posturing and provocation.
A sit-down with the United States president is something North Korea has long pushed for.
He accompanied the young leader at all four of his recent summits, twice with South Korean President Moon Jae-in and twice with Chinese President Xi Jinping.
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Interestingly, Google seems to have used a notched display in a design that is largely similar to the Pixel 2 XL from a year ago . There's still a two-tone finish, a back-center fingerprint scanner, single camera lens, and a USB-C charging port.