At least, that's what appears to be the reason behind a gift Trump is reportedly giving Kim, to be delivered via Secretary of State Mike Pompeo while he's in North Korea this week: a CD with Elton John's song "Rocket Man", per the Chosun Ilbo's sources.
After a almost three-hour meeting with Kim Yong Chol, the pair broke up for dinner, with the U.S. side saying that talks would continue Saturday morning.
South and North Korean basketball players took to the court Wednesday in Pyongyang for their first friendly game in 15 years, surrounded by thousands of North Koreans chanting "peace" and "prosperity".
Pompeo last visited in May ahead of the Trump-Kim summit and traveled to Pyongyang secretly in early April while he was director of the Central Intelligence Agency.
Late last month, 38 North, a US -based North Korea watchdog, reported the North was making improvements at one of the country's nuclear research centres at a "rapid pace" despite Kim's pledge to denuclearize the Korean peninsula.
"We can't have madmen out there shooting rockets all over the place", Trump said at the rally in Huntsville, Alabama.
North Korea could also deliver the remains of some American soldiers killed in the 1950-53 Korean War.More news: India star bowler ruled out of England T20 series
Both issues are considered essential tests of whether Mr Kim is serious about negotiations.
Defense Secretary Jim Mattis said last month that the United Nations command in South Korea would initially take charge of the transfer of remains - when they occur - and would then turn them over to the custody of the USA military.
Although the talks have yielded nothing so far, Trump has spent the weeks since his summit celebrating it as a major success: "We signed a wonderful paper saying they're going to denuclearize their whole thing".
North Korea has one of the world's largest navies by number of ships.
In an earlier tweet Pompeo said Trump believes Kim wants a "different, brighter future" for North Koreans. They've said Kim is keen to transition North Korea's priority away from a constant focus on defending against potential attacks, and toward general economic growth and improvement.
Ahead of the summit, Pompeo said Trump would reject anything short of "complete, verifiable and irreversible denuclearisation".
"But for eight months there's been not one rocket or missile launch or there hasn't been a nuclear test", Trump offered on progress with North Korea. He landed in Pyongyang for the first time since President Trump met Kim at a summit in Singapore last month. "We are watching closely". Moon Chung-in noted that while the current relationship between South Korea, North Korea and the United States, was conducive to finding peace for all parties, that could well change.
In retaliation to the THAAD deployment, Beijing imposed unofficial boycotts on South Korean businesses and banned group tours to South Korea.