On 23. March 1974, Gene Simmons did his blood spitting routine live for the first time when playing “100,000 Years” at a Kiss show at The Academy Of Music, New York.

Gene Simmons:
“I remember seeing Christopher Lee as Dracula in one of the Hammer films, Blood of Dracula or Horror of Dracula. I’ll never forget when he bit into something and his mouth was covered with blood. I thought, that’s cool, I should do that onstage. Why? Why do little boys stick frogs up girls’ skirts? Because they squeal and that’s fun.”
– “Kiss: Behind the mask”, p153

The God of Thunder facebook page:
The earliest blood routine ever was during the Raeanne Rubenstein red-background photo session on January 25, 1974 but there is no photographic evidence of it in concert until March 23, 1974.

On 25. January 1974, Kiss did a photo session with photographer Raeanne Rubenstein in New York. This was probably the first time Gene Simmons used blood as a shock effect.

On 23. March 1974, Gene Simmons did his blood spitting routine live for the first time when playing “100,000 Years” at a Kiss show at The Academy Of Music, New York.

Gene Simmons:
“I remember seeing Christopher Lee as Dracula in one of the Hammer films, Blood of Dracula or Horror of Dracula. I’ll never forget when he bit into something and his mouth was covered with blood. I thought, that’s cool, I should do that onstage. Why? Why do little boys stick frogs up girls’ skirts? Because they squeal and that’s fun.”
– “Kiss: Behind the mask”, p153

The God of Thunder facebook page:
The earliest blood routine ever was during the Raeanne Rubenstein red-background photo session on January 25, 1974 but there is no photographic evidence of it in concert until March 23, 1974.

On 25. January 1974, Kiss did a photo session with photographer Raeanne Rubenstein in New York. This was probably the first time Gene Simmons used blood as a shock effect.