My Fair Lady is a musical based upon George Bernard Shaw's Pygmalion and with book and lyrics by Alan Jay Lerner and music by Frederick Loewe. The story concerns Eliza Doolittle, a Cockney flower girl who takes speech lessons from professor Henry Higgins, a phoneticist, in order that she may pass as a proper lady.
The musical's 1956 Broadway production was a hit, setting what was then the record for the longest run of any major musical theater production in history. It was followed by a hit London production, a popular film version, and numerous revivals. It has been called "the perfect musical".