Time to revive the thread, I think smile

One addition to the discography:

Billy appears on the single by Dead or Alive - the lesser one from 1991 called "Unhappy Birthday". It was only released in Japan as a CD3, and our Bill is credited with "Electric Viola" on the third track: "Unhappy Birthday (Ninja Billy Mix)".
More detailed info here:

Another connection between him and DOA - they recorded an album in his studio in 1989 (I think).