The accepted parameters of what defines a rock star might change with each passing trend, but you know one when you see one.

While the quality of music definitely plays a role, it's far from the only factor that determines whether or not an artist crosses into rock stardom. To achieve the designation, you need a magnetic presence, an unmistakeable mystique and, in many cases, a healthy amount of danger and recklessness.

But thanks to the open access we have to everyone on the internet and a sea change throughout the industry as a whole, some claim the age of the true rock star is over. In the gallery above, however, are 50 musicians who prove otherwise.

Who do you thank is the last true rock star? Let us know in the comments section below.