Zappa is a strange character that you probably haven't heard too much about if you're a young person. Old people either loved him or despised him, but musicians revered him. Zappa was a composer, among being one of the greatest guitar players who ever lived. He was notorious for conducting his band until exactly the right time, and then he would pick up his instrument. Without Zappa, music would have never reached its instrumental peak by modern artists, and he hasn't even played a show since 1989.
Johnny Rotten
The Sex Pistols were another polarizing band. Either you loved them, or you hated them, but most people hated them. Despite that, it is undeniable what they did for punk music in modern times.
If Sid Vicious was a trampoline, Johnny Rotten was the person jumping on it. They played off of each other so well, constantly wordlessly challenging one another to push themselves to their physical and emotional brinks on stage. The Sex Pistols have only released one singular album, and that was all they needed. These individuals have made a life out of the energy they poured into that singular piece of music. Seeing them was explosive, dangerous, concerning, but overtly captivating.
Jerry Garcia
Jerry Garcia is one of the most notable, most revered, and coolest rockstars of all time. His peaceful demeanor and pleasant expressions describe his personality to a T. He was just a really good dude who loved making music.