People can hate on party girls all they want, but they're the ones who make the world go 'round. It's not just because they were the reason the early 2000s were the greatest era, that they subsidize the booze and marijuana industries, and are the ultimate taste-makers for the younger crowd. It's because they live forever. Don't believe us? Click through for some definitive proof that party girls are invincible!

[Photo via Getty]