40 years of KISS

For 40 years, KISS has been enthralling fans with its hard-rock sound, over-the-top look and pyrotechnic shows. Although Gene Simmons has claimed <a href='http://www.esquire.com/blogs/culture/gene-simmons-future-of-rock' target='_blank'>in Esquire magazine</a> that "rock is finally dead," KISS is one of the genre's most enduring bands. Here's a look back at the group over the years. Left to right, Paul Stanley, Peter Criss, Gene Simmons and Ace Frehley pose for KISS' first album in 1974.

For 40 years, KISS has been enthralling fans with its hard-rock sound, over-the-top look and pyrotechnic shows. Although Gene Simmons has claimed in Esquire magazine that "rock is finally dead," KISS is one of the genre's most enduring bands. Here's a look back at the group over the years. Left to right, Paul Stanley, Peter Criss, Gene Simmons and Ace Frehley pose for KISS' first album in 1974.