Earth A.D. is the last album released Misfits to feature founding member and lead vocalist, Glenn Danzig. Danzig released it on his Plan 9 label in December 1983, two months after he played his last concert with the band. It was noticeably harder and faster than their previous releases, showing more of a hardcore punk sound.
Originally released as a 9 song LP, it was later issued with the three tracks of the Die, Die My Darling EP incorporated into the track listing: "Die, Die My Darling", "Mommy, Can I Go Out and Kill Tonight?" and "We Bite".