Jo junior, who is actively involved in everything from music production to live performances, and producer Bay Bull, who are both based in their hometown of Yokohama, Japan. J island", the long-awaited first EP by the two artists. The two have been working together for a long time, Following their previous work "Re:rise", The five songs on this EP represent a day in the life of a summer day. Summer EP. Jo junior & Bay Bull "J island" with the coming summer I hope you will enjoy it.