Avenged Sevenfold - Wikipedia, the free encyclopedia en.wikipedia.org/wiki/Avenged_Sevenfold Avenged Sevenfold (sometimes abbreviated to A7X) are an American heavy metal band from Huntington Beach, California. Formed in 1999, the group consists of M. Shadows (lead vocalist), Zacky Vengeance (rhythm guitarist and backing vocalist), Synyster Gates (lead guitarist and backing vocalist), and Jo