Nothing really bad. There is one episode were the band is performing in a bar and Reggie gets a bottle thrown at his face, leading to a bar fight between the band and the audience. There is punching and some people get bottles broken over their heads. Reggie has blood on his face from the bottle and he is later seen with a bad bruise.

Strong language all throughout the series.

Tobacco and marijuana are smoked a lot. People drink alcohol in some episodes. There is one episode where people eat magic mushrooms.

None.