Joan Baez (/ˈbaɪ.ɛz/; born January 9, 1941 as Joan Chandos Báez) is an American folk singer, songwriter, musician, and activist. Baez has performed publicly for over 55 years, releasing over 30 albums. Fluent in Spanish as well as in English, she has also recorded songs in at least six other languages. She is regarded as a folk singer, although her music has diversified since the counterculture days of the 1960s and now encompasses everything from folk rock and pop to country and gospel music. Although a songwriter herself, Baez is generally regarded as an interpreter of other people's work, having recorded songs by the Allman Brothers Band, the Beatles, Jackson Browne, Leonard Cohen, Bob Dylan, Violeta Parra, Woody Guthrie, The Rolling Stones, Pete Seeger, Paul Simon, Stevie Wonder and many others. In recent years, she has found success interpreting songs of modern songwriters such as Ryan Adams, Josh Ritter, Steve Earle and Natalie Merchant. Her recordings include many topical songs and material dealing with social issues.

She began her recording career in 1960, and achieved immediate success. Her first three albums, Joan Baez, Joan Baez, Vol. 2, and Joan Baez in Concert all achieved gold record status, and stayed on the charts of hit albums for two years.