There are multiple artists with this name:
1) Mantas is a Heavy Metal/ AOR band from UK, later they switched style to Nu Metal. It is the project of Mantas, guitarist of the British Black Metal band Venom .
2) Mantas is a Death Metal band from Orlando, USA. They formed in 1983 and changed their name to Death in 1984.
3) Mantas is a blackened thrash metal band from California, USA.
4) Mantas is a Lithuanian singer and actor. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.