Founded in 1982 by vocalist Toshi and drummer Yoshiki, X Japan started out as a power/speed metal band and later gravitated towards a progressive sound with an emphasis on ballads.

They then achieved breakthrough success with their second album and major label debut, Blue Blood, in 1989.

In 1992, the band changed their name to X Japan and bassist Taiji left the group, being replaced by Heath.

They officially recruited lead guitarist Sugizo to fill-in for the deceased hide two years later and in 2011 had their first worldwide release, the digital single "Jade".

During its ten years of production, several release dates were announced, but it remains unreleased despite being completed in September 2018.