Hoshino Gen is currently working on a new song which will serve as J-WAVE's spring campaign song. 

Various artists have provided the theme song for J-WAVE's spring campaign until now. Last year's song was Spitz' "Sara Sara" produced by Kameda Seiji.

The theme of this year's campaign is "TOKYO GOOD VIBRATION". Along with music, J-WAVE aims to spread various cultural aspects to the city of Tokyo. The station will play Hoshino's song when the campaign starts on March 21. 

There will also be a collaboration project between J-WAVE and Hoshino. More details on this will be revealed later.

Source: natalie