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.
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.
It was announced that they would release their first CD on November 14, 2007, including the song "Ultra Music Power", which was used as the theme at Japan's Volleyball World Cup Relay 2007.
On December 22, the group held their debut concert: Debut Concert Ikinari! in Tokyo Dome. With an average age of 15.7, they were the youngest group to perform in the Tokyo Dome. A concert DVD was released on April 30, 2008.
The group released their third single "Dreams Come True" on May 21, which topped the Oricon Chart. In July 2008, it was announced that the group's fourth new single "Your Seed" would be used as the title song for the Japanese release of the animated film Kung-Fu Panda.
In October 2008, the group released the single "Mayonaka no Shadow Boy". It was used as the theme song for the drama Scrap Teacher, which starred members Arioka, Yamada, Nakajima, and Chinen.
After the full group's tour, junior division Hey! Say! 7 had their first concert series called Hey! Say! 7 Spring Concert 09 MONKEY. Following this, the entire group toured their concert Hey! Say! JUMP CONCERT TOUR Spring '09. A second concert DVD, Hey! Say! JUMP-ing Tour '08–'09, was released in April 2009.
On February 24, 2010, after a year and a half of touring, the group released their sixth single "Hitomi no Screen", which topped the Oricon weekly singles chart with 202,000 sales.
The group released its first album, Jump No. 1, on July 7, 2010. On December 15, the group released the single "Arigatō (Sekai no Doko ni Ite mo)". It reached number one on the Oricon singles chart, and sold 151,000 copies on its first week.
2011: Yan Yan JUMP, Morimoto's suspension, The Smurfs
Hey! Say! JUMP and other Johnny's Jr. members starred in the 2011 variety show Yan Yan JUMP. It was based on Yan Yan Utau Studio, which had aired two decades earlier, featuring senior celebrities of Johnny & Associates.
The group was surrounded by controversy in June 2011 after photos of Ryutaro Morimoto smoking while underage were leaked. When he was asked about the photos, he said "it was alright" and that it was "no big deal". In response to the scandal, Johnny's Entertainment issued a statement of apology the following day and planned to indefinitely suspend Morimoto from all of his activities. Following the removal of Morimoto's profile from the official Johnny & Associates website, Johnny Kitagawa stated that Morimoto had ambitions to focus on studying and denied any possibility of his returning to the group.
On June 29, the group released the new single "Over". It peaked at number one on the Oricon singles chart on its first day, and was the group's highest-selling single since "Ultra Music Power" in 2007.
On September 21, 2011, they released their ninth single, "Magic Power", their first release after Morimoto's suspension. "Magic Power" was used as the theme for the Japanese dub of The Smurfs, in which members Yamada and Chinen provided the voices for Clumsy Smurf and Brainy Smurf.
2012: Asian tour, musical and second album