There are two artist with the name Arias 1. Arias is a 5 piece metalcore band out of Irvine, CA. They have all brought together many great ideas over the past three years of being in various bands together. 2. Arias is a French DJ well-known for his co-release “Magenta” with Arno Cost. It is also the singing, emotional part of operas that most people think of when they think of Opera in general. “Arias” is simply the name of a collection of operatic arias from various composers.