There are at least four bands named AION: 1. A power/thrash metal band from Japan (1983-present). Check ＡＩＯＮ. 2. A gothic metal band from Poland (1996-2004). 3. A metalcore band from Kristiansand, Norway. 4. AION is also a Swiss black metal band from Sion, Valais (2013-present). They've so far released one full-length album Verses of Perdition in 2015. 5. Aion, also known as AIΩN, was a French Industrial Rock group from Nancy that formed in 1990.