There are at least 5 music projects called Severe.

1) Severe is a hardcore band from Toronto, Ontario.
http://severetohc.bandcamp.com
http://severetohc.bandcamp.com
http://severetohc.bandcamp.com

2) Severe is a melodic pop/rock band from Oulu, Finland. The band was found in July 2010.

Severe is:
Mikko Kylmänen - Vocals & Guitars
Santeri Teppola - Vocals & Keyboards
Toni Pohjanen - Guitars
Matti Nieminen - Bass
Aleksi Kelloniemi - Drums

Links:
www.facebook.com/SevereBand
www.youtube.com/user/SEVEREBANDFIN


3) Severe was a powerviolence/hardcore band from Columbus/Cincinnati, Ohio. Around 2006 a group of friends made a band as way of celebrating with a friend who was moving away. They wrote some songs and recorded a demo. The demo was later picked up by 625 Thrashcore and released as a 7" called Snitch Slaughter and the band was included on a compilation. They pay mega homage to early 90's PV bands like Crossed Out and Man is the Bastard.

4) Black Metal/Punk from Brussels
http://severeband.bandcamp.com/

5) noise/ambient from Hobart/nipaluna
https://53v3r3.bandcamp.com/ Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.