There are multiple artists with this name:

1) HIGH are a "psychedelic grunge/stonergaze" duo from Maidstone, Kent, England
2) High is a Danish pop/new wave/new rave band consisting of four high school friends from Silkeborg.
3) HIGH is a crustcore / hardcore punk band from Tübingen, Germany.
4) HiGH is a pop punk / indie rock band from New Orleans, Louisiana. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.