Breaking Bad has popularized meth in pop culture to the point that talking about the drug is really just a way of talking about Walter White and his path of destruction (Note that in the show White causes more visible destruction than the drug. Breaking Bad has never been particularly interested in the experience of users, outside what we see of Jesse in the early seasons.) Surely you've been to BB theme parties that are stocked with big bags of blue rock candy to rep the drug.
But Walter White isn't the first famous figure to dabble in the debilitating drug. Like every other substance on the planet, it's been used by celebrities.
Meth isn't as badass as the show makes it seem, and these people will be the first to tell you that: A History of Celebrities Getting Caught With Meth.