premise: Hair (musical) is a musical that has been on Broadway since 2009.
hypothesis: Hair (musical) . After an off-Broadway debut in October 1967 at Joseph Papp 's Public Theater and a subsequent run at the Cheetah nightclub from December 1967 through January 1968 , the show opened on Broadway in April 1968 and ran for 1,750 performances . A Broadway revival opened in 2009 , earning strong reviews and winning the Tony Award and Drama Desk Award for best revival of a musical .