The album took nearly 5 years to make. All of the songs were written by Iommi, producer Bob Marlette and the respective vocalists of each track (except "Black Oblivion", which was written by only Iommi and Billy Corgan).
According to Tony Iommi, he and Phil Anselmo had recorded three tracks together for the album, but only one was put onto the album. Iommi has also said he "Wrote a couple of tracks with Billy Idol and two with Billy Corgan, but you know, we could only use one of each".
Iommi commonly refers to Tony Iommi (born 1948), an English guitarist, songwriter and producer, and notable band member of Black Sabbath. Iommi is an Italian surname. Other notable people with the surname include:
- Enio Iommi (1926–2013), Argentine sculptor
- Jemma Connor-Iommi (born 1985), English-born Irish footballer, related to Tony Iommi