President Trump teased an upcoming meeting with Kim Jong Un on Thursday as the White House confirmed the North Korean leader sent him a letter "aimed at following up on their meeting in Singapore." In a tweet, Trump thanked Kim for the "nice letter" and for keeping his promise of returning what's believed to be the remains of US soldiers who fought in the Korean War, which arrived in Hawaii on Wednesday, per the AP. "I look forward to seeing you soon!" he added. White House spokeswoman Sarah Sanders didn't comment on when the two leaders might meet again, but she said Kim's letter spoke of "advancing the commitments made" at their June summit, spoofed in a K-pop artist's latest music video, per CNN. (More President Trump stories.)