“Sabbra Cadabra” is a cover of Black Sabbath’s song from 1973’s Sabbath, Bloody Sabbath—while also adding part of another song from that album, “A National Acrobat,” during the midsection.

Sabbra Caddabra has always been the fucking riff from hell. I remember, on the Load tour, talking about this project with Kirk in Frankfurt, and saying ‘if we do any Sabbath, it’s got to be 'Sabbra Caddabra’“
-Lars Ulrich on why the song was chosen