Avenged Sevenfold started out as a metalcore band from Huntington Beach, California. Since their inception, they’ve turned to the genres of heavy metal and hard rock. Original members include lead vocalist M. Shadows, guitarist Zacky Vengeance, guitarist Synyster Gatesm bassist Johnny Christ, and drummer Jimmy “The Rev” Sullivan. When Jimmy Sullivan died of an overdose in 2009, Dream Theater’s Mike Portnoy took his place, followed by permanent replacement Arin Ilejay. Avenged Sevenfold, sometimes abbreviated A7X, has released five studio albums and sold more than 8 million albums.