Immortal

Immortal was formed in 1991 by Abbath and Demonaz, alongside other former members of the extreme metal bands Old Funeral and Amputation. At various times throughout the band's history, Abbath has been the lead vocalist, bassist, guitarist, keyboardist, drummer, and lyricist, due to the difficulties of upholding a stable line-up. During Immortal's early years, Abbath originally served as the band's vocalist, bassist and studio drummer, while Demonaz played guitar. A steady-lineup was secured for a brief time when drummer Horgh joined Immortal. After the release of Blizzard Beasts in 1997, Demonaz was diagnosed with acute tendinitis, and was consequently forced to quit as guitarist, but remained as lyricist and band manager. Immortal released At the Heart of Winter in 1999, with Abbath taking over guitar and bass duties. This album marked a large shift in sound and style for the music of Immortal. In 2000, the band released Damned in Black, with Iscariah on bass. Sons of Northern Darkness was released in 2002, with the same lineup. Soon after the release of the album, Immortal decided to split and cited personal reasons for their break-up.^[8]

In early May 2006, Abbath announced that Immortal would reunite.^[9][10] In regard to when Immortal would start playing live again, Abbath said:

I didn't really want to say it, but I don't give a shit. We will come back, stronger than ever. I've met with Horgh for the first time in over a year. He's built his new house here, right around the corner. In the next few days we will begin to rehearse our old 'Blizzard Beasts' classics. I'm already really hot on the idea. Immortal are timeless frost. One year more or less doesn't make a difference. We have all the time in the world.

A comeback tour followed the reunion with shows in Europe in 2007 and the band's first tour of Australia and New Zealand in 2008. A new Immortal album, All Shall Fall, was released in autumn of 2009. The band's performance at Wacken Open Air in 2007 was recorded and filmed for the release of the 2010 video album The Seventh Date of Blashyrkh. Abbath left Immortal in 2015 after a legal battle with the other members over the rights to the band's trademark.^[11][12]

I

Following Immortal's break-up in 2003, Abbath began working on a new project called I that same year.^[13][14] Abbath served as vocalist and guitarist, and was joined by former Immortal drummer Armagedda, Gorgoroth bassist King ov Hell, Enslaved guitarist Arve Isdal, and then-former Immortal guitarist Demonaz as lyricist.^[13] The band released their debut album Between Two Worlds in 2006 and performed their only concert at that year's Hole in the Sky festival in Bergen.^[15][16]

Abbath

After leaving Immortal in 2015, Abbath formed a new eponymous band and released their first self-titled album in early 2016.^[17] Abbath followed up their debut with the album Outstrider in 2019.^[18] Their latest album, Dread Reaver, was released in 2022.^[19]

Bömbers

Bömbers is a Motörhead tribute band formed in 1996. The band consists of childhood friends Abbath "Killminister" on lead vocals and bass, Tore "Fast Tore" Bratseth (of Old Funeral and The Battalion) on guitars, and Jan Terje "Pez" "Party Animal" Pedersen (Punishment Park and Jef) on drums.^[20][21] Motörhead frontman Lemmy attended Bömbers' show at Garage in 1997 after his band's show in Bergen.^[21] Abbath left Bömbers in late 2000 to focus on Immortal and returned after their break-up in 2003. Nicola "Morrigan" Trier (of Aeternus) filled in on bass in his absence while Bratseth handled vocal duties. In 2005, Bömbers released the EP Bergen with covers of "Bomber", "No Class" and "Dead Men Tell No Tales".^[22] During the Inferno Metal Festival in 2007, Abbath joined the German thrash metal band Sodom on stage and performed a cover of Motörhead's "Ace of Spades". In October 2024, Bömbers announced that the band had split up due to personal differences.^[23]

Alcohol issues

The 2019 South American tour of Abbath was abruptly cancelled mid-tour, after during a show at Argentina, Abbath appeared to behave erratically and "too drunk to perform";^[24] the tour was cancelled the next day^[25] and Abbath announced entering rehab later that month.^[26]