Looks like we know why KISS recently postponed a few of their 'End Of The Road' tour dates. On Tuesday, Gene Simmons was hospitalized for a kidney stone procedure.
Last month, the band cancelled tour dates in L.A., Oakland, and Salt Lake City, which Simmons said was due to a "medical procedure" that was "nothing serious, but it must be taken care of now."
Next up for KISS is their annual 'KISS Kruise' voyage, which sets sail Oct. 30th, followed by another 'End Of The Road' swing through Australia, New Zealand, and Japan.