Hey! Say! JUMP


A name of japan pop group singer (youth club) which born 21 September 2007 ,
which be a 10 teenager boy, Which divide 2 team that is
Hey! Say! BEST
{Student of senior high school}
(Boys Excelent Select Team)
Hey! Say! 7
{Student of junior high and elementary school}
(7 from number from born year that's 2007)

And average of age that's 15 years old