I'll give some clues.
I'm assuming the original intent of the question was to name the original four.
I'll provide the names of
ALL members of KISS.
The originals:
Gene Simmons - Vocals/Bass
Paul Stanley - Vocals/guitar
Ace Frehley - Guitar
Peter Criss - Drums
The replacements:
Vinnie Vincent - Guitar
Mark St. John - Guitar
Bruce Kulick - Guitar
Tommy Thayer - Guitar
Eric Carr - Drums
Eric Singer - Drums
Out of all of them, only two never changed their name.
edit: unofficially, Bob Kulick contributed on Guitar and Anton Figg contibuted on Drums on different albums. Just in case someone wanted to call me on that one.
