Conversation so far:
What happened in 1993 involving X Japan?
Art of Life was released on August 25, 1993, by Atlantic Records
How did Art of Life by X Japan sound?
The album was heavily orchestrated
Was Art of Life by X Japan successful?
It debuted at number one, however the band only performed two concerts that year
Why did X Japan only perform 2 concerts?
each member began solo careers

Question: What happened with the solo careers?
Self-contained rewrite: What happened with the solo careers?