Iron Man was released by Black Sabbath in 1970 on the album Paranoid, with Ozzy Osbourne on vocals and Tony Iommi creating the central guitar riff. The song became one of heavy metal's most recognisable tracks and has been used for decades in films, trailers, sports entrances and superhero references. Online, short clips of the opening riff are repurposed for humorous heroic moments, which is how this version gained the back scratcher anthem label among soundboard and meme edit users.