Both men walked to Trump's limousine and looked in at the rear seat, with Trump apparently showing Kim something inside. "I think it will be tremendously successful, and it's my honor and we will have a terrific relationship".
Kim responded: "It was not easy to get here".
What did emerge from the four hours of discussions between the two leaders on Tuesday was a significant easing of tensions, and with this, an end to the nuclear brinksmanship between two erratic leaders that had shocked the world past year.
From there, the group expanded even further for a working lunch.
Light on specifics, the document signed by the leaders largely amounted to an agreement to continue discussions as it echoed previous public statements and past commitments.
Kim spoke at the signing, through a translator, saying that they had a "historic meeting and chose to leave the past behind".
"Many people in the world will think of this as a. form of fantasy. from a science-fiction movie", Kim said, according to a translator.
The commentary came after Trump and Kim signed an agreement earlier Tuesday committing the U.S.to unspecified "security guarantees" in exchange for an eventual denuclearization of the Korean peninsula.
Read a full copy of the document here.
"I really, really hope for a good outcome", said Yoon Ji, a professor at Sungshin University in Seoul. "Maybe in a year you'll be interviewing and I'll say I made a mistake".
He recently faced a barrage of criticismsover his trade policy, including the imposition of punitive tariffs on US' top trading partners; proposal for readmission of Russian Federation to the group; the abrupt withdrawal from the Iranian nuclear deal earlier this year; and reneging on the Paris Agreement on climate change last year. While Kim is staying at the St Regis Hotel that has been converted into a fortress ahead of June 12, Trump is reportedly staying at Shangri-La Hotel.
Analysts now worry that the flag visuals will be used by Pyongyang to tell people the U.S. and North Korea are peers. On the flipside, critics said the welcome Trump was giving Kim in Singapore would legitimise one of the world's worst human rights offenders.
It should be happening soon at Capella Hotel in Sentosa before the United States president leaves for Paya Lebar Airbase to his next stop: Guam.
Kim and Trump come face-to-face for the first time. We've overcome so many obstacles which blocked our eyes and ears, dragging our feet down due to the past history, prejudices. Here are some of the stories we're talking about on ABC News' new daily podcast, "Start Here". No prior White House would send the president into a summit that has not been pre-scripted with guaranteed results. We'll be doing something on it.
Asked about denuclearisation, Trump said a process would be started "very quickly".