Detroit Metal City, Seikima II Humane Society: Jinrui Ai ni Michita Shakai Recommendations
These OVAs are both centered around glam metal bands that look like KISS knockoffs. In the case of DMC it's a parody focusing on a fictional band, while Seikima II is based off of a real Japanese band and is about their fictional backstory as demons.
They're both hilarious, but I'm not entirely sure if Seikima was meant to be a comedy.
These two anime are about metal bands that portray themselves as demons. DMC is more comedic, while Seikima focuses on action, but they're both pretty ridiculous.