Renacchi Sousenkyo Senbatsu
Renacchi Sousenkyo Senbatsu (れなっち総選挙選抜) is a special AKB48 unit created from the "Renacchi Sousenkyo," an informal ranking created by Kato Rena on 755.
The "Renacchi Sousenkyo" consisted of Kato's top 16 favorite members. After creating the list, she requested to Akimoto Yasushi that a song and music video be made for the group.
They became a single unit, and sing Madonna no Sentaku on AKB48's 42nd single Kuchibiru ni Be My Baby. Tanaka Natsumi is the center, as she ranked first in Kato's ranking.