Their breakthrough came after the release of 1975's Alive!, a double live album that featured live recordings from their first three records. It peaked at #9 on the Billboard chart and sold over 9 million copies worldwide.
The news comes just weeks after Frehley canceled the remainder of his 2025 tour dates "due to some ongoing medical issues."
Frehley left the group in 1982 but rejoined them in 1996. He then left again in 2002, after KISS’ first farewell tour.