Heavy Metal Machine

Heavy Metal Machine is a song from The Smashing Pumpkins' fifth studio album, Machina/The Machines of God, which was also released as a promotional single.

In preparing for the reissue of Machina, Corgan said the master reels for the original recording have been lost (along with several other songs), but there is a workable mix with louder vocals that can be used. The remix from Machina II version will also be included, which had "three basses playing different parts and three James' playing also different parts". After some missing vocals takes were found, Howard Willing is said to have "bridged the gap between ghoul pap-pop and noize rock".