Hey! Say! JUMP

Hey! Say! JUMP (HSJ or JUMP) is a seven-member Japanese boy band under the Japanese talent agency Starto Entertainment (formerly known as Johnny & Associates). The group is split into two sub-groups: Hey! Say! BEST and Hey! Say! 7. In Japan they sold more than 10 million physical copies.

Hey! Say! JUMP originally debuted with ten members, the largest group in Johnny's history. In 2011, Ryutaro Morimoto was indefinitely suspended from the group following an underage smoking scandal. On April 11, 2021, Keito Okamoto announced that he would be leaving the group in order to pursue an acting career but would be remaining under Johnny & Associates. On August 28, 2025 Yuto Nakajima announced he would graduate from the group.

History

Formation

During a KAT-TUN spring concert on April 3, 2007, Yuya Takaki, Daiki Arioka, Ryosuke Yamada, Yuto Nakajima and Yuri Chinen were announced to become part of a temporary group called Hey! Say! 7. The name refers to the Heisei period during which all members were born, as well as to the year 2007 as the group's formation year.

On June 16, 2007, it was announced that Hey! Say! 7 would release "Hey! Say!" as a single on August 1. This later became Hey! Say! JUMP's single. The song and the single's B-side, "Bon Bon", were used as the second opening and closing themes for the anime Lovely Complex. The single sold 120,520 copies in its first week, making the group the youngest male group to top the Oricon singles chart.

On September 24, the five members of Hey! Say! 7 were joined by Kota Yabu, Kei Inoo, Hikaru Yaotome, Keito Okamoto and Ryutaro Morimoto, all represented by Johnny's Jr's. The ten-member group was organized into two sub-groups of five, with the older members forming Hey! Say! BEST and the younger members in Hey! Say! 7.