Avenged Sevenfold (often abbreviated A7X) is an American heavy metal band from Huntington Beach, California. Formed in 1999, the group consists of M. Shadows (vocalist), Synyster Gates (lead guitarist), Zacky Vengeance (rhythm guitarist), and Johnny Christ (bassist).
They are known for their diverse rock sound and dramatic imagery in album covers and t-shirts. Avenged Sevenfold emerged with a metalcore sound on their debut Sounding the Seventh Trumpet but their style had evolved by their third album and first major label release, City of Evil into a hard rock/heavy metal sound. The band continued to explore new sounds with their self-titled release and enjoyed continued mainstream success before their drummer, James “The Rev” Sullivan, died in 2009.