Anni-Frid Synni, Princess Reuss of Plauen (German: Anni-Frid Synni, Prinzessin Reuss von Plauen; born Anni-Frid Synni Lyngstad, 15 November 1945), widely known as Frida Lyngstad or by just the mononym Frida, is a Norwegian-born Swedish pop and jazz singer. Born in Norway to a Norwegian mother and a German father, she grew up in Sweden and was a member of the Swedish group ABBA between 1972 and 1982. After the break-up of ABBA, she continued an international solo singing career with mixed success. In 1997, Frida recorded her final album before 'retiring' from music. She now focuses on environmental issues.