Bishop has been active in the folk community since the late 1960s. In 1976 she founded Mother of Pearl Records. She recorded her first children's album, Belly Button: A Collection of Songs for Children in 1982. Bishop has been a staple at many of Canada's children's music festivals. Bishop is also a prominent social activist, championing such causes as labour unions, environmentalism, LGBT rights, animal rights, and children's safety. She was made a member of the Order of Canada in 2005.