There are more than one artist with this name.
1) Amen is a cross-genre rock band mainly taking influence from 1980s hardcore, punk rock and black metal.
2) Amen is crust/hardcore/grindcore band from Finland.
3) Amen is a Speed/Thrash Metal band from Medellín, Colombia, formed in 1986.
4) Amen is an up & coming emcee from Columbia, South Carolina who is working with MIDIMarc.
5) Amen is a death/thrash metal band from Požega, Croatia, formed in 1990. Read more on Last.fm