Atsuko Maeda (前田 敦子, Maeda Atsuko; born July 10, 1991) is a Japanese actress and singer best known for being a former member of the idol girl group AKB48. Nicknamed Acchan (あっちゃん), she was one of AKB48's most prominent members at the time with such monikers as the "absolute ace", "immovable center", and the "face of AKB". After graduating on August 27, 2012, Maeda has since then continued with a solo singing and acting career.
Source: “Atsuko Maeda”, English Wikipedia (CC BY-SA 4.0), excerpt