A long time ago, Vince Neil pleaded guilty to a vehicular manslaughter charge that put him in jail for 6 years all while he was actively using heroin. Since then Neil has cleaned up his act, and he still performs in a modern iteration of Mötley Crüe. His unique sound and inhuman energy held him at the top for decades, and he has yet to step down.
Gene Simmons
Despite his contriversial political ideologies that put him under scrutiny recently, Gene Simmons is one of the greatest rock legends in history.
Going to see kiss was like going to a Broadway production. The entire band would be adorned in armor and chains, pyrotechnics, shiny polished cymbals, and high budget sound design. Part of Simmon's charm is that he has never drank alcohol or done drugs in his life, contrary to the perceived rock and roll lifestyle that he was assumed to live. He accredits sobriety for his ability to put on artistically unforgettable performances.
Bon Scott
AC/DC was party metal, and the legendary frontman brought all the energy, and the party, to the party. Unfortunately, Bon Scott passed away at a very young age from complications caused by his alcoholism. If it weren't for Bon Scott pushing AC/DC forward, they might have never left Australia.