Harada became a musical sensation in Japan when he released his debut single Teens' Blues on October 25, 1977 when he was 18 years old.
He released two more singles, Candy in November and Shadow Boxer in December same year.
All three singles ranked within the top 20 in the Oricon chart simultaneously, which had never happened before.
The debut album Feel Happy was to become number one in the first week of release in Japan in 1978.
Harada is just as prolific a songwriter, having written or composed for Koji Kikkawa, Junko Yagami, Anri, Hiromi Go, Akina Nakamori, AND many more artists.