Early bands and Earth Butler joined his first band, the Ruums, named after an
Arthur Porges science fiction story, in 1965. His first professional gig was with the Ruums at the Parochial Hall in
Erdington, where they performed covers of various
Merseybeat bands. The Ruums would perform only a handful of local gigs before breaking up, but it was long enough for Butler to decide that he wanted to devote his life to music.
Black Sabbath (1969-1984, 1987, 1990-1994, 1997-2006, 2011-2017, 2025) Inspired by
John Lennon, Butler played rhythm guitar in his pre-Sabbath days, including with The Rare Breed. When Sabbath was formed, Iommi made it clear that he did not want to play with another guitarist, so Butler moved to bass. According to Butler, "I'd never played bass until I was on stage at the first gig that we played. Borrowed the bass guitar off one of my friends and it only had three strings on it." Butler lists
Jack Bruce of
Cream as his biggest influence as a bassist. Iommi described Butler as being "from another planet" in the band's early days; he took
LSD, wore Indian hippie dresses, and was very peaceful. He again left the band in 1984 after touring in support of their 1983 album,
Born Again, although he returned months later as the band attempted a comeback with vocalist
David Donato. He rejoined Black Sabbath in 1991 for the reunion of the
Mob Rules line-up, but again quit the group after the
Cross Purposes tour in 1994. Butler reunited with the original lineup of
Black Sabbath at
Back to the Beginning in July 2025 for a final show.
Ozzy Osbourne (1988-1989, 1994-1996) In 1988, Butler joined the backing band of his former Black Sabbath bandmate
Ozzy Osbourne to take part in the
No Rest for the Wicked World Tour. In 1994, Butler again joined Osbourne's band to perform on the
Ozzmosis album, released in 1995. He toured with Osbourne on the
Retirement Sucks tour from 1995 through 1996.
GZR (1995–2006) After recording
Ozzmosis, he formed
GZR, issuing
Plastic Planet in 1995. His next solo album,
Black Science, followed in 1997. Butler returned to Sabbath once more for the 1997 edition of
Ozzfest, and remained with the band for the remainder of their career. In 2005 he released
Ohmwork, his third solo album.
Heaven & Hell (2006–2010) In October 2006 it was announced that Butler, along with
Tony Iommi, would be reforming the
Dehumanizer-era Black Sabbath line-up with
Vinny Appice and
Ronnie James Dio under the name
Heaven & Hell to differentiate between the Osbourne fronted line-up of Black Sabbath that had been performing at
Ozzfest in the previous years. Heaven & Hell released two live albums
Live from Radio City Music Hall (2007),
Neon Nights: 30 Years of Heaven & Hell (2010), and one studio album titled
The Devil You Know (2009). The line-up broke up after the death of Dio in 2010.
Other projects Geezer Butler left Black Sabbath as the band disintegrated following the 1983–1984
Born Again tour. He would rejoin and leave the band several times over the years, with
The Geezer Butler Band being his first attempt at a recording project outside of Sabbath. Along with Butler, the band consisted of guitarist
Pedro Howse, who would later also play in
GZR with Butler. Welsh vocalist
Carl Sentance (ex-
Persian Risk) fronted the band. The band released no recordings, but performed some shows in the mid-1980's of which some bootleg recordings still exist. Geezer Butler, along with
Rob Halford and
Bill Ward, recorded a cover of Black Sabbath's
The Wizard as the supergroup
Bullring Brummies for
Nativity in Black: A Tribute to Black Sabbath released in 1994. Butler briefly joined the supergroup band
Deadland Ritual formed by former
Guns N' Roses drummer
Matt Sorum. The band released its debut single and music video
Down in Flames in December 2018. After playing a handful of live shows in 2019, Geezer Butler said that he considered Deadland Ritual to be dead. In 2023, Butler published his autobiography
Into the Void: From Birth to Black Sabbath—And Beyond. He also provided the narrating voice for the audio-book version. Later, he made a brief appearance during Foo Fighters' performance in Birmingham in June 2024. In January 2026, Butler confirmed that he was working on a new solo album. He revealed that he recorded several demos with
AI guide vocals, but intended to bring in live vocalists for the final product. == Style and legacy==