Dissident Aggressor is an apocalyptic epic song released by the British heavy metal band, Judas Priest that was first released on Sin After Sin in 1977. The song features "driving guitar riffs" and guitarists, K. K. Downing and Glenn Tipton trade solos in the song.Thirty three years later, the song won the 2010 Grammy Award for Best Metal Performance after being released again on A Touch of Evil: Live.