Gene Simmons added to the show as Kiss was wrapping up its Bozeman, Montana concert.
Simmons fell during the band's closer "Rock and Roll All Night" Sunday night, Ultimate Classic Rock reported.
It's amazing that it doesn't happen more often, but he's been wearing the extreme platform boots for decades.
Simmons had stepped back from the microphone and quickly slipped. A roadie rushed to his side to get the lead singer back on his feet.
And while Kiss and Simmons have been silent over the fall, in the age of cellphones, there is video showing the spill.
Kiss started its latest tour on July 4 in Arizona. Each concert, they honor the men and women of the military by choosing one veteran to work on the road crew each night.
For a list of upcoming shows, click here.
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