James Rado, one of the authors of the historic musical 'Hair' (1967), passed away at the age of 90.
According to spokeswoman Merle Frimark, his death occurred from cardio respiratory arrest.
Rado was at his home in New York.
Born James Alexander Radomski and originally from Lois Angeles, the American actor, director and composer owes his fame above all to having written with Gerome Ragni the libretto of what would become the musical manifesto of the generation and hippie.
The show that celebrated protest, reeds and free love also paved the way for sound rock on Broadway.
Thanks to Hair, other rock musicals such as 'Jesus Christ Superstar', 'Rent' and more recently 'Hamilton' were possible.
What was renamed the '
American tribal love-rock musical 'premiered at New York's East Village Public Theater in 1967, then moved to Broadway where it remained for over 1,800 performances.
In 1969 he won a Grammy for best musical.
Rado also had a role in the musical, it was Claude, a young man who is about to be called up and sent to fight in the Vietnam War.