Avenged Sevenfold is an American heavy metal band from Huntington Beach, California, formed in 1999. The band's current lineup consists of vocalist M. Shadows, rhythm guitarist Zacky Vengeance, lead guitarist Synyster Gates, bassist Johnny Christ, and drummer Brooks Wackerman. Avenged Sevenfold are known for their diverse rock sound and dramatic imagery in album covers and merchandise. The band emerged with a metalcore sound on their debut album Sounding the Seventh Trumpet and largely continued this sound through their second album Waking the Fallen. The band's style had evolved by their third album and first major label release, City of Evil, into a more traditional heavy metal style. The band continued to explore new sounds with its self-titled release and enjoyed continued mainstream success before their founding drummer, Jimmy "The Rev" Sullivan, died in 2009. Despite his death, Avenged Sevenfold continued on with the help of Dream Theater member Mike Portnoy, and released and toured in support of their fifth album Nightmare in 2010, which debuted atop the Billboard 200, their first number one debut. In 2011, drummer Arin Ilejay joined the band on tours and recording.