James Owen Sullivan, known as The Rev, was an American musician and songwriter, best recognized as the drummer and backing vocalist for the heavy metal band Avenged Sevenfold. Born on February 9, 1981, in Huntington Beach, California, he became a prominent figure in the metalcore and heavy metal scenes. The Rev's complex drumming style, characterized by rapid double bass patterns and intricate fills, set a new standard within the genre. Notable works include Avenged Sevenfold's albums "City of Evil" (2005), "Avenged Sevenfold" (2007), and "Nightmare" (2010), with the latter being released shortly after his untimely death in December 2009. The Rev contributed not only his drumming but also songwriting, co-writing many tracks including the iconic "Bat Country." The Rev's impact on music is significant; he is remembered for his technical prowess and unique flair, influencing a generation of drummers. His death was a profound loss for the band and the metal community, but his legacy endures through Avenged Sevenfold's continued success and the ongoing admiration for his contributions to the genre.