North Korea
Popular South Korean rock band YB and solo singer Baek Ji-young also joined the 5-member girl group in the special performance
Kim Jong-un made the visit, which was not announced publicly, ahead of planned meetings with South Korea and the US.
Talks are a sign of better relations after tensions over Pyongyang's nuclear programme.
The launch ended more than two months of relative peace
The pair want to end the vicious cycle and restore calm to the region
Over the past two years, North Korea has moved from a starter nuclear program to possessing the technology to at least strike the U.S. Pacific territory of Guam.
If North Korea were to use its nuclear weapons, it would be suicide. But that doesn't mean it loses
Here are the key dates in Pyongyang’s quest to develop a missile capable of hitting the United States.
North Korea shot a missile over Japan. It seems Japan didn't know what to do.
