Ken will be performing at KPP CAMP which's to celebrate Hibiya Park's 115th anniversary & Hibiya Open Air Concert Hall's 95th anniversary
Besides Ken , Kyary Pamyu Pamyu & CHAI will be performing at the event which will take place on 3rd June at Hibiya Open Air Concert Hall
https://natalie.mu/music/news/281121
http://www.sonymusic.co.jp/artist/KenHirai/info/494470
Interesting that Ken & Kyary Pamyu Pamyu are friends . Guess they have Nakata Yasutaka to thank ?