Wednesday, January 30th marks the 40th anniversary of KISS's first performance. It was held at Popcorn, a club in Queens, New York. The original line-up was Gene Simmons, Paul Stanley, Ace Frehley and Peter Criss. They have gone through numerous line-up changes since with only Simmons and Stanley being the two constants. Looking back, Simmons says, "We've defied the odds, we've buried all the critics in our backyard -- they're now gone -- and we have persevered and grown bigger than ever. By some estimates, KISS are the four most recognized faces on planet Earth." In celebration, they are posting videos from throughout their career on their website.