They have a pretty messy history.
I know Ace and Peter often seem like junior members of the band compared to Gene and Paul, but it comes down to work ethic. Ace is the poster child of a slacker and Peter never seemed to embrace the creative and marketing plan. If it was because he only cared about the music that's fine, but KISS was far greater than the music, so I can understand why Gene and Paul didn't find that to be acceptable. They do the work and the other two simply enjoy the benefits? Seems unfair.
Both Ace and Peter have been out of the band longer than they were in, but they are the classic line-up for sure. Still, the legacy continues because of other past as well as the current members. Yeah, it's a mess.
Just wait until Deep Purple gets in. They have exponentially more members that can claim legitimate membership. At least everyone gets along there except for Ritchie of course. And there is zero chance he would even care. He's a nut.
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