Synn-Anni-Frid "Frida" Lyngstad, now Her Serene Highness Princess Reuss of Plauen (German Anni-Frid Prinzessin Reuss von Plauen) (November 15, 1945 at Ballangen, near Narvik, Norway) is a Swedish singer best known for being one of the members of the famous Swedish group, ABBA.
