"Astorolus - The Great Octopus", the new video from Swedish doom metal legends CANDLEMASS, can be seen below. The track, which features a guest guitar solo by none other than BLACK SABBATH's Tony Iommi, is taken from the band's 12th album, "The Door To Doom", due on February 22 via Napalm Records. The disc unsurprisingly follows the plotline mastermind, songwriter and bass player Leif Edling established in the past years: epic world-class doom metal that relies on slow mammoth riffing.

Edling states: "Here's the video for 'Astorolus'. Monsters and Gods come in different shapes. The eternal wheel of birth and death portrayed in a cool video and great song. Talking about gods, the master himself Tony Iommi is playing the solo here (part 1+2 out of 3). Immense feeling, wonderful tome, so much presence! Just incredible! Hats off to him for helping us out. A dream coming true! Looking forward to play it live on the tour with GHOST. We're rehearsing it right now. New stuff and the old classics. Can't wait to go out on this tour. Johan is back singing, 'The Door To Doom' is getting brilliant reviews, the band is in great form... Will be a blast!"

Comments Iommi: "CANDLEMASS are a major force in Scandinavian heavy rock and have always acknowledged the influence we had on their music. They asked if I'd contribute to a track which sounded pretty good so I thought, 'Why not?'"

Adds Edling: "We feel very honored that Tony Iommi said yes to play the solo on 'Astorolus'. The song was sent to the management and amazingly enough, the master agreed to let his mighty SG sing on the track! For me personally, this is a dream come true. Tony Iommi has always been my hero and guiding light when it comes to heavy music, so to hear that he likes the song and also would like to play on it gave me chills down the spine! I'm still in shock! But kudos to him to be so cool to even listen to it. Hats off! Tony Iommi is and will always be God!"

"The Door To Doom" marks the recording comeback of newly returned singer Johan Längqvist, who recently replaced CANDLEMASS's frontman of the past six years, Mats Levén.

"The Door To Doom" track listing:

01. Splendor Demon Majesty

02. Under The Ocean

03. Astorolus - The Great Octopus (feat. Tony Iommi)

04. Bridge Of The Blind

05. Death's Wheel

06. Black Trinity

07. House Of Doom

08. The Omega Circle

Längqvist sang on CANDLEMASS's debut album, 1986's "Epicus Doomicus Metallicus", before exiting the group and being replaced by Messiah Marcolin.

CANDLEMASS's most recent full-length album, "Psalms For The Dead", came out in 2012 via Napalm Records. It was the last CANDLEMASS album recorded with singer Robert Lowe, who left the band just days before its release.

CANDLEMASS is:

Leif Edling: Bass

Mats "Mappe" Björkman: Guitars

Jan Lindh: Drums

Lars "Lasse" Johansson: Guitars

Johan Längqvist: Vocals

Photo by Anders Pålsson