The title says most of it. Wario-related music can be here...but they don't have to be strictly Wario (I think we already have threads for those anyways). Like, for instance, I'm listening to Twisted Sister's "I Wanna Rock."
I love Rock and Roll, especially the 80s stuff, though the modern stuff isn't actually so bad, either.
I'm more into videogame soundtracks than "actual music".
So the only bands I listen to are ones that have something to do with games, such as Crush 40 :
It's completely fine to put video game music here, or anything related to games. To be quite honest, I listen to a good chunk of video game music myself (to the extent that I get upset whenever a game with awesome music doesn't have a sound test of any sort).
Pretty much entirely gaming music. Some from Zelda, some from Mario, some from the Wario series... I pretty much don't listen to other music at all nowadays.
Listening to the old 1971 Lupin III (Green Jacket) theme song from the first intro.
They don't make songs like this in anime, or animation in general anymore.