Frida Ensam was released in Sweden by Anni-Frid Lyngstad in 1975. She was in ABBA at the time. Anni-Frid-Synni Frida Lyngstad, now Her Highness The Princess Reuss of Plauen (Anni-Frid Prinzessin Reuss von Plauen) (born November 15, 1945) is best known as one of the four members of the Swedish pop group ABBA. She is of German and Norwegian origin. ... 1975 was a common year starting on Wednesday (the link is to a full 1975 calendar). ... ABBA (clockwise from top: Benny, Björn, Frida, Agnetha) on the cover of their album The Definitive Collection (2001) ABBA (1970 - 1982) was a Swedish pop music group. ...