Singer and musical actor Kim Jun-su and Kim Jae-joong will be singing together for a soundtrack for a Japanese drama series titled “Waru~Who Said That Working Isn’t Cool?~” (translated), which is set to air from April 13. The soundtrack is titled “Sixth Magnitude Star.”

It’s been quite a while since the two singers sang together. Kim Jun-su and Kim Jae-joong used to be in the same trio, JYJ.

“It’s been a long time since I last released a song in Japan,” said Kim Jun-su in a statement through his label Palmtree Island on Wednesday. “I’m so thrilled about it, and most of all, I’m very excited that I was able to sing together with Jae-joong. It’s been a while and it was always great working with him.

"It’s a great song so please show a lot of love towards it."

Based on a popular manga of 30 years ago written by Fukami Jun, the series tells the story of an optimistic employee and her mysterious coworker who struggles to succeed in life.

BY YIM SEUNG-HYE [yim.seunghye@joongang.co.kr]