Former U-KISS member, Kim Kibum, now better known by his Japanese stage name Allen Kim, has released his solo debut single “Longing” in Korea, along its corresponding music video.

In his two years of promoting in Japan, Kibum only concentrated on live performances. He wanted to return as a singer in Korea again, and after his current agency made him an offer, he decided to make a solo debut with first single “Longing”.

Check out the MV below: