Who sings 'we shall overcome'?

The song was adapted from a 1901 hymn as "We Will Overcome" when recorded by Joe Glazer in 1950, and the version "We Shall Overcome" (ascribed to Pete Seeger) by Laura Duncan & the Jewish Young Singers in 1952. Popular versions were recorded by Seeger and by Joan Baez (who sang it during the 'March on Washington' in 1963). It became identified in the US with the Civil Rights Movement of the late 1950's and early 1960's, culminating in the Civil Rights Act of 1964. The song was also invoked during an Appalachian mining protest and during the Velvet Revolution in Poland (1989) and in the apartheid struggles in South Africa.