Crystal King

At least two acts have recorded under the name Crystal King:

1) ????????(Crystal King) are a Japanese rock duo who were first active in the 1970s. They are known in the west for performing "Ai wo Torimodose!", the theme tune to the anime Hokuto no Ken.
The band was formed by Musshu Yoshizaki in 1971, who was joined by a second vocalist, Masayuki Tanaka, in 1975. Other musicians to have played with the band include Yamashita Michio on guitar and Nomoto Hidetoshi on bass. They made their major label debut in 1980.

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