HKT48 (read "H.K.T. Forty-eight") is a Japanese idol group produced by Yasushi Akimoto. HKT48 is named after the Hakata-ku ward of Fukuoka, where Akimoto originally intended to base the group. The group performs at City Bank HKT48 Theater in Fukuoka and has sold nearly 4 million copies of CDs in Japan.
Source: “Miku Tanaka”, English Wikipedia (CC BY-SA 4.0), excerpt