KISS's final tour will soon be coming to an end. For frontman Gene Simmons, the experience has been amazing and he's looking to the future.ET's Cassie DiLaura sat down with Simmons over the weekend, during his big 74th birthday bash at Pinz Bowling Alley in Studio City, California, where the rocker was using the occasion of his special day to raise money for the non-profit organization Mending Kids.With KISS' set to wrap up on Dec. 2 with a final show at Madison Square Garden in New York City, Simmons says he feels «great and grateful» for getting to perform for as long as he has.«There's a great sense of pride.