Hey! Say! JUMP is a ten-member Japanese boy band under the Japanese talent agency Johnny & Associates. The name Hey! Say! refers to the fact that all the members were born in the Heisei period and JUMP is an acronym for Johnny's Ultra Music Power. Like agency seniors Hikaru Genji and V6, the group is split into two subgroups: Hey! Say! BEST (Boys Excellent Select Team) and Hey! Say! 7 (not to be confused with the temporary group of the same name), which consists of the five oldest members and five youngest members respectively.History
Early 2007: The temporary Hey! Say! 7
During a KAT-TUN spring concert on April 3, 2007, Johnny's Jrs. Yuya Takaki, Daiki Arioka, Ryosuke Yamada, Yuto Nakajima and Yuri Chinen were named to be part of a new group called Hey! Say! 7. Initially, the temporary status of the group was unclear, worrying a lot of fans of Johnny Jr's groups J.J. Express as it could mean that the group was splitting up and that Yuya Takaki and Daiki Arioka would permanently be in this group instead.
On June 16, 2007, it was announced that Hey! Say! 7 would release "Hey! Say!" as a single on August 1, 2007. While the A-side "Hey! Say!" was used as the second opening song for the anime Lovely Complex, the single's B-side "Bon Bon" was used as the second ending song for the same anime. The single went on to sell 120,520 copies in its first week, making the group the youngest male group to top the Oricon singles chart.
Late 2007—present: Debut of Hey! Say! JUMP
On September 24, 2007, Johnny & Associates announced the formation of Hey! Say! JUMP, the agency's largest Johnny's group in history. The five members of Hey! Say! 7 was joined by Johnny's Jrs. Kota Yabu, Kei Inoo, Hikaru Yaotome, Keito Okamoto and Ryutaro Morimoto, and the ten-member group was split into two subgroups of five based on age. It was also announced that they would make their CD debut on November 14, 2007 with "Ultra Music Power", which was used as Japan's Volleyball World Cup Relay 2007 theme song.
On February 24, 2010, the group released their fifth single "Hitomi no Screen", which topped the Oricon weekly single charts with 202,000 copies. Hey! Say! JUMP released their first album titled Jump No. 1 on July 7, 2010.
Members
Hey! Say! BEST
Hey! Say! 7
Taken from http://en.wikipedia.org/wiki/Hey!_Say!_JUMP
