Deep Purple's Ian Gillan says Black Sabbath were most important 'Unholy Trinity' band

Ahead of Deep Purple and Led Zeppelin

Ian Gillan in 2024 and Black Sabbath in 1970
Author: Scott ColothanPublished 23rd Jul 2024

Ian Gillan has suggested that Black Sabbath were more important than their fellow so-called ‘Unholy Trinity’ bands Deep Purple and Led Zeppelin.

Deep Purple, Led Zeppelin and Black Sabbath were bestowed with the honorific nickname the ‘Unholy Trinity of British Hard Rock and Heavy Metal’ by music journalists in the 70s in homage to their seismic influence on the heavier side of the rock music genre.

In a new interview to promote Deep Purple’s excellent new album ‘=1’, Ian Gillan said that Sabbath are perhaps the “most important” of the three due to their profound impact on heavy metal.

“Just like ‘sex, drugs and rock and roll’, the ‘unholy trinity’ was created entirely by our good friends the music journalists,” Gillan said

“We knew them, drank with them and they put into words what everyone was doing - something distinctive and identifiable.”

Black Sabbath in 1983

Gillan, who fronted Black Sabbath from 1982 and 1984 lending his trademark vocals to the ‘Born Again’ album, went on to highlight the Birmingham band’s significance.

“To a certain extent, Sabbath were the most important because without them there would have been no Seattle (grunge scene) or heavy metal,” he continued to the Bizarre column.

“What Tony was delivering in those early days was just awesome. It was so powerful.

“The three bands did something that had never been done before. They were putting into action all the things that had been building up over the previous ten years.”

Featuring the Planet Rock playlisted singles ‘Pictures of You’, ‘Portable Door’ and ‘Lazy Sod’, Deep Purple’s 23rd studio album ‘=1’ is out now.

The 50 greatest rock singers of all time, including Deep Purple, Black Sabbath and Led Zeppelin stars:

50) Beth Hart


49) Sebastian Bach

Bands a member of: Skid Row, Madam X, Damnocracy, solo artist

48) Elvis Presley


47) Mike Patton

Bands a member of: Faith No More, Mr. Bungle, Fantômas, Tomahawk, Dead Cross, Peeping Tom, Lovage, Kaada/Patton, Hemophiliac, Nevermen

46) Layne Staley

Bands a member of: Alice in Chains, Mad Season, Class of '99

45) Sammy Hagar

Bands a member of: Van Halen, Montrose, Sammy Hagar & the Waboritas, Chickenfoot, Sammy Hagar and the Circle, Hagar Schon Aaronson Shrieve, Planet Us.

44) Chester Bennington

Bands a member of: Linkin Park, Dead by Sunrise, Grey Daze, Kings of Chaos, Stone Temple Pilots

43) Jon Anderson

Bands a member of: Yes, The Warriors, Mabel Greer's Toyshop, ,Jon and Vangelis, Anderson Bruford Wakeman Howe, Yes featuring Jon Anderson, Trevor Rabin, Rick Wakeman

42) Bruce Springsteen


41) David Draiman

Bands a member of: Disturbed

40) James Hetfield

Bands a member of: Metallica

39) Dave Grohl

Bands a member of: Foo Fighters (vocals, guitar); Nirvana, Them Crooked Vultures, Scream, Mondo Generator (drummer and backing vocals); Sound City Players, (vocals, guitar and drums); Probot (lead guitar, drums, bass)

38) Geddy Lee

Bands a member of: Rush, The Big Dirty Band (bass only).

37) Steve Marriott

Bands a member of: Small Faces, Humble Pie, solo artist

36) David Bowie


35) Shane Greenhall

Bands a member of: Those Damn Crows

34) Danny Vaughn

Bands a member of: Tyketto, Waysted, Vaughn, Snake Oil & Harmony, solo

33) Mick Jagger

Bands a member of: The Rolling Stones, From the Inside, The Illegal Eagles, Burning Kingdom

32) Lemmy

Bands a member of: Motörhead, Hawkwind, The Rockin' Vickers, Opal Butterfly, The Damned, The Head Cat, Sam Gopal

31) Jay Buchanan

Bands a member of: Rival Sons

30) Geoff Tate

Bands a member of: Queensrÿche, Operation: Mindcrime, Sweet Oblivion, solo artist

29) Eddie Vedder

Bands a member of: Pearl Jam, Temple of the Dog, Hovercraft, Bad Radio

28) Janis Joplin

Bands a member of: A solo artist who also performed with Big Brother and the Holding Company

27) Phil Lynott

Bands a member of: Thin Lizzy, Grand Slam, The Greedies, Skid Row

26) Stevie Nicks

Bands a member of: Fleetwood Mac, Buckingham Nicks and an esteemed solo artist

25) Brian Johnson

Bands a member of: AC/DC, Geordie

24) Glenn Hughes

Bands a member of: Deep Purple, Black Sabbath, Trapeze, Black Country Communion, The Dead Daisies, Finders Keepers, Hughes/Thrall, Phenomena, Hughes Turner Project, Michael Men Project, Kings of Chaos, California Breed, solo artist.

23) Brent Smith

Bands a member of: Shinedown, Smith & Myers

22) Roger Daltrey

Bands a member of: The Who

21) Floor Jansen

Bands a member of: Nightwish, Northward

20) Meat Loaf


19) Axl Rose

Bands a member of: Guns N' Roses, Hollywood Rose, L.A. Guns

18) Steven Tyler

Bands a member of: Aerosmith, Chain Reaction

17) Noddy Holder

Bands a member of: Slade

16) Steve Perry

Bands a member of: Journey, solo artist

15) Rob Halford

Bands a member of: Judas Priest, Halford, Fight, 2wo

14) Ozzy Osbourne

Bands a member of: Black Sabbath, solo artist

13) Danny Bowes

Bands a member of: Thunder, Terraplane, Nuthin' Fancy, Bowes & Morley

12) Lzzy Hale

Bands a member of: Halestorm, Skid Row (temporary singer)

11) Bon Scott

Bands a member of: AC/DC, Fraternity, The Valentines, The Spektors

10) Chris Cornell

Bands a member of: Soundgarden, Audioslave, Temple of the Dog, solo artist

9) Ian Gillan

Bands a member of: Deep Purple, Gillan, Black Sabbath, The Javelins, Episode Six, Ian Gillan Band, Gillan & Glover, WhoCares

8) Ann Wilson

Bands a member of: Heart, solo artist

7) David Coverdale

Bands a member of: Whitesnake, Deep Purple, Coverdale-Page

6) Bruce Dickinson

Bands a member of: Iron Maiden, Samson, solo artist

5) Myles Kennedy

Bands a member of: Alter Bridge, Slash featuring Myles Kennedy and the Conspirators, Kings of Chaos, solo artist

4) Paul Rodgers

Bands a member of: Free, Bad Company, The Firm, The Law, Queen + Paul Rodgers, solo artist

3) Robert Plant

Bands a member of: Led Zeppelin, Jimmy Page and Robert Plant, Robert Plant and Alison Krauss, Band of Joy, The Honeydrippers, various solo bands

2) Ronnie James Dio

Bands a member of: Dio, Black Sabbath, Heaven & Hell, Rainbow, Elf, Ronnie & The Red Caps, Ronnie Dio & The Prophets, The Electric Elves, The Elves

1) Freddie Mercury

Bands a member of: Queen, Ibex Sour, Milk Sea

Listen to Planet Rock on DAB nationwide, on our Rayo app, online or via your smart speaker (“Play Planet Rock”).