Real name: Ragnhild Birgit Ridderstedt

Swedish-American folk singer, born Anderson 26 November 1914 in Ludvika, died 16 September 1985 in Täby.

She appeared at festivals and television in the United States during the 1950s and 1960s with entertainment that she produced. She made her debut in revues at her birthplace at a young age.

Ridderstedt emigrated in 1950 with her husband C. Erik Ridderstedt and the couple's two small sons. The family lived the longest in Batavia, Illinois, where she also opened and ran her own gift shop "Scandinavia in Batavia" as a development of her husband's import business in Swedish arts and crafts.

It was her advertising ideas for the business that over time led to several TV appearances in Chicago as a guest artist on cultural programs, first on WTTW's public service channel, where she presented Swedish midsummer with Swedish songs and folk dance, then also in commercial television, as in the popular program Polka-Go-Round where she brought with her children who sang Swedish songs and high-school young people who danced folk dances. When Ridderstedt returned to Sweden in 1962, she had appeared with a total of 45 young people on television in Chicago a dozen times with features about midsummer, the Lucia celebration and passion games; she had then also with her own groups participated four times in the annual celebration of the Swedish Days in Geneva, Illinois and appeared many times as a speaker and soloist in front of various organizations. Ridderstedt then also appeared with his folk music programs in the 1970s in West Florida. She and her husband, who died in 1982, lived out their last years in Täby. When she died she was called a cultural ambassador by Dagens Nyheter.