AKB48
Also, there are sister groups such as SKE48, SDN48, NMB48, HKT48, JKT48, SNH48, TPE48 and MNL48. "SKE" name is derived from Sakae (),"NMB" is from Namba (), "HKT" is from Hakata (), "JKT" is from Jakarta, "SNH" is from Shanghai (),  "TPE" is from Taipei () and "MNL" is from Manila.  Also, the name "SDN" is derived from "Saturday Night". SDN48 consisted of members aged 20 or over. It had a more sexy, adult image, but it eventually split up.