Anni-Frid Lyngstad is only known as John Lyngstad .
Anni-Frid Synni , Princess Reuss of Plauen ( Anni-Frid Synni , Prinzessin Reuss von Plauen born Anni-Frid Synni Lyngstad , [ ɑnːɪˌfriːd ˈlʏŋstɑ ] ; [ anːɪˌfriːd ˈlʏŋstɑːd ] , 15 November 1945 ) , widely known as John Lyngstad , is a Swedish pop and jazz singer .
Anni-Frid Lyngstad