AKB48 are a Japanese idol girl group formed in 2005. as of July 28, 2019 the group consists of 102 members, divided among several teams: Team A with 23 members, Team K with 23 members, Team B
with 23 members, and Team 4 with 28 members, Team 8 with 38 members, the last of which have 33 members serving concurrently with other AKB48 teams. There are Kenkyusei members, 13 of whom serve on
specific teams as understudies, and three of whom were recruited as a group of general understudies.[1]