MacDermot moved to New York City in 1964 where, three years later, he wrote the music for the hit musical "Hair", which he later adapted for "the 1979 film". Its Broadway cast album won a Grammy Award in 1969. The song from the musical "Hair" "Aquarius/Let the Sunshine In" reached number one for six weeks in 1969. The song Hair reached number one on the charts in 1969. His next musicals were "Isabel's a Jezebel" (1970) and "Who the Murderer Was" (1970), which featured British progressive rock band Curved Air. MacDermot had another hit with the musical "Two Gentlemen of Verona" (1971), which won the Tony Award for Best Musical. For that show, MacDermot was nominated for a Tony for best music and won the Drama Desk Award for Outstanding Music. His later musicals, however, including "Dude" and "Via Galactica" (both 1972) and "The Human Comedy" (1984), were not successful on Broadway.