Avenged Sevenfold is an album by an American heavy metal band.
Avenged Sevenfold ( sometimes abbreviated as A7X ) is an American heavy metal band from Huntington Beach , California , formed in 1999 . Avenged Sevenfold emerged with a metalcore sound on the band 's debut Sounding the Seventh Trumpet . Avenged Sevenfold is the eponymous fourth studio album by American heavy metal band Avenged Sevenfold , released on October 30 , 2007 by Warner Bros. . Hail to the King is the sixth studio album by American heavy metal band Avenged Sevenfold . Nightmare is the fifth studio album by American heavy metal band Avenged Sevenfold .