"Armageddon It" is a song by the English hard rock band Def Leppard from their 1987 album Hysteria. It was released as a single in 1988 and went to No. 3 in the U.S. (their fourth U.S. Top Ten hit). The actual line of "Armageddon It" is meant to be a word play on the line "I'm A Gettin' It," thought up by the band during the recording sessions for the Hysteria album. The vocal style of the song is described as "T.Rex meets Eddie Cochran with backing vocals", according to lead singer Joe Elliott in the liner notes for Vault: Def Leppard Greatest Hits (1980-1995).