El-Regn was one of the first bands to introduce the underground genre in Norway.

But on one level at least it makes perfect sense, given the mainstreaming of a once underground musical genre and its celebration of C.E.O. culture.

I mean, there are award shoes for more underground genres but this is music for the masses.

Tech trance started as an underground genre, but in recent years has grow in popularity due to its hard-edged nature and growing list of producers.

It really does feel like an underground genre, as there aren't many artists you can search itunes for.

Hip hop started out as an underground genre, with very little support from the general public.

Progressive metal's popularity started to decline towards the end of the 1990s, but it remains a largely underground genre with a committed fan base.

Album-cover art and publicity photos are essential to some of these underground genres.

Side-Line was immediately recognised as the leading English-written magazine on the underground genre and received support from the record companies and media throughout the scene.

Today, eurodance is generally an underground genre, and it does not receive airplay on mainstream radio.