Hey! Say! JUMP

A nine-member Japanese boy band under the talent agency Johnny & Associates. The group is split into two sub-groups: Hey! Say! 7 (which composed of the younger members) and Hey! Say! BEST (the older members).

Hey! Say! JUMP originally debuted with ten members, the largest group in Johnny's history. But in 2011, Ryutaro Morimoto was indefinitely suspended from the group following an underage smoking scandal. Hey! Say! JUMP is considered an expansion of the temporary group Hey! Say! 7. 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.

(Source: Wikipedia)