Gyomu Renraku. Tanomuzo, Katayama Bucho! in Saitama Super Arena (業務連絡。頼むぞ、片山部長! in さいたまスーパーアリーナ, "Business Contract. I'll Ask, Katayama Director! in Saitama Super Arena") was AKB48's Spring Concert in 2012, held in Saitama Super Area. The concert was renamed after Maeda Atsuko's graduation announcement to Maeda Atsuko no Namida Sotsugyou Sengen! in Saitama Super Arena - Gyomu Renraku. Tanomuzo, Katayama Bucho! - (前田敦子の涙卒業宣言！ in さいたまスーパーアリーナ　~業務連絡。頼むぞ、片山部長!~ "Maeda Atsuko's Graduation Declaration of Tears in Saitama Super Arena - Business Contract. I'll Ask, Katayama Director! - ")  With the participation of SKE48, NMB48, HKT48, SDN48 and JKT48, 3 different shows were done in the time span of 3 days, from March 23 - March 25, 2012.  This is the concert where Maeda Atsuko famously made her graduation announcement.