Long before anyone called it heavy metal, a handful of bold musicians were already cranking up the distortion, pounding the drums harder, and screaming into microphones like the world owed them something. These tracks from the 1960s broke every rule in the rock playbook, laying down sounds so raw and aggressive that even today they feel like a punch to the chest.
The genre did not have a label yet, but the spirit was already there, loud and alive. Get ready to meet the songs that built the foundation of heavy metal before anyone knew what to call it.
1. The Kinks – You Really Got Me (1964)
Few guitar riffs in history hit as hard and as early as this one. Ray Davies and his brother Dave created a wall of fuzzy, distorted sound in 1964 that left listeners genuinely stunned.
Dave reportedly slashed his speaker cone with a razor to get that gritty, broken tone.
That rough, overdriven guitar became a blueprint for every heavy band that followed. Before anyone coined the term heavy metal, The Kinks were already living it.
2. The Who – My Generation (1965)
Roger Daltrey’s stuttering, defiant vocals and Pete Townshend’s aggressive power chords made this track feel like a declaration of war against polite society. Released in 1965, it captured a generation’s rage in under four minutes.
The bass line from John Entwistle alone was heavier than most full bands of the era.
Smashing instruments on stage was The Who’s signature move, and this song set the rebellious tone that hard rock and metal would carry for decades.
3. Cream – Sunshine of Your Love (1967)
That opening riff is one of the most recognizable in rock history, slow and thick like molten iron being poured. Eric Clapton, Jack Bruce, and Ginger Baker locked into a tribal groove that felt ancient and futuristic at the same time.
Power chords, feedback, and thunderous drums drove the track forward.
Cream built a sound in 1967 that was darker and heavier than almost anything around them, pointing directly toward the metal era ahead.
4. The Jimi Hendrix Experience – Purple Haze (1967)
Jimi Hendrix played guitar like no one before or since, bending notes into shapes that seemed to defy physics. Purple Haze opened with one of rock’s most iconic riffs, built on a dissonant tritone interval that sounded genuinely unsettling and thrilling all at once.
His overdriven tone was unlike anything listeners had heard.
Hendrix electrified the blues and pushed rock into heavier, stranger territory. Without Purple Haze, the metal guitar solo might never have existed.
5. Vanilla Fudge – You Keep Me Hangin On (1967)
Taking a Supremes pop hit and turning it into a slow, crushing psychedelic monster was genuinely audacious in 1967. Vanilla Fudge stretched the original song to nearly seven minutes, layering organ drones, thunderous drums, and distorted guitar until it became almost unrecognizable.
Volume and aggression replaced the original track’s sweetness completely.
This transformation showed that rock music could be reimagined as something heavier and more intense, a lesson early metal bands took very seriously.
6. Steppenwolf – Born to Be Wild (1968)
Born to Be Wild practically invented the biker anthem genre overnight when it roared onto radio stations in 1968. John Kay’s gravelly, commanding voice paired with hard-driving guitars created a sound that felt genuinely dangerous.
The phrase “heavy metal thunder” appears right in the lyrics, one of the earliest uses in popular music.
Steppenwolf did not just play hard rock. They accidentally named a genre while doing it, earning a permanent spot in metal history.
7. Blue Cheer – Summertime Blues (1968)
Blue Cheer took Eddie Cochran’s 1958 rock and roll track and absolutely buried it under layers of fuzz, feedback, and ear-splitting volume. The result was messy, chaotic, and completely thrilling.
Pounding drums, floor-shaking bass, and a guitar tone that sounded like a chainsaw made this unlike anything else on the radio in 1968.
Many music historians point to this recording as the true starting gun for heavy metal’s sonic assault. Their debut album is often called the first metal record.
8. Deep Purple – Mandrake Root (1968)
Mandrake Root does not get nearly enough credit for how heavy it was in 1968. Ritchie Blackmore’s dark, coiling guitar riffs wrapped around Jon Lord’s thunderous organ work to create something genuinely menacing.
The track stretched across long, improvised passages that gave each musician room to push into aggressive territory.
Deep Purple was already at the forefront of heavy music long before Machine Head made them famous. Mandrake Root proves it with every pounding beat.
9. Iron Butterfly – In-A-Gadda-Da-Vida (1968)
Clocking in at over seventeen minutes on the album version, this track was a slow-burning, hypnotic beast unlike anything rock had produced before 1968. The organ riff was heavy and repetitive in a way that felt almost ceremonial.
A drum solo in the middle stretched on for nearly three minutes and audiences loved every second.
Iron Butterfly built a cathedral of psychedelic sound here that foreshadowed doom metal’s obsession with weight, repetition, and atmosphere in remarkable ways.
10. The Beatles – Helter Skelter (1968)
Paul McCartney reportedly wanted to make the noisiest, most abrasive track The Beatles had ever recorded, and he absolutely succeeded. Helter Skelter features his vocals pushed to a throat-tearing scream, distorted guitars crashing over each other, and a rhythm section that sounds completely unhinged.
It broke every rule the band had ever followed.
Hearing Ringo Starr shout about blisters at the end captures just how physically demanding this track was to record. Proto-metal does not get more surprising than this.
11. MC5 – Kick Out the Jams (1969)
Recorded live at Detroit’s Grande Ballroom, this track captured a band performing like their lives depended on it. MC5 played with a furious, political energy that made most rock acts of 1969 sound tame by comparison.
Rob Tyner’s opening shout is one of the most electrifying moments in live rock history.
The high-voltage aggression here fed directly into punk and metal’s DNA. MC5 were not just a band.
They were a force of nature on a stage.
12. The Stooges – I Wanna Be Your Dog (1969)
One chord. One relentless, pounding riff.
A sleigh bell clanging throughout. Iggy Pop snarling like something feral.
The Stooges built I Wanna Be Your Dog out of the most stripped-down elements imaginable and created something that felt genuinely threatening in 1969. Ron Asheton’s guitar work was blunt and hypnotic by design.
The track’s raw, unpolished garage rock energy was a crucial building block for metal’s attitude. Iggy’s performance alone influenced a thousand frontmen who came after.
13. Led Zeppelin – Whole Lotta Love (1969)
Jimmy Page’s opening riff on Whole Lotta Love is one of the heaviest things ever committed to tape in 1969. Robert Plant’s wailing vocal performance matched the intensity perfectly, while John Bonham’s drumming hit with the force of a wrecking ball.
The chaotic, psychedelic middle section added a layer of weirdness that made the return of the riff even more powerful.
Led Zeppelin became the undisputed kings of British hard rock with this track, cementing their place as proto-metal royalty.
14. King Crimson – 21st Century Schizoid Man (1969)
Starting with a riff so heavy it reportedly influenced Black Sabbath directly, this track announced King Crimson to the world in the most dramatic way possible. Robert Fripp’s distorted guitar work was angular and aggressive, while Greg Lake’s vocals were run through a processor to sound mechanical and menacing.
The song shifted through jazz-influenced passages before crashing back into its monstrous main theme.
Wall-of-sound drumming and genuine musical complexity made this a proto-metal masterpiece that still sounds futuristic today.
15. Coven – Black Sabbath (1969)
Most people do not know that a band called Coven released a track titled Black Sabbath before the famous Birmingham band’s debut album ever hit shelves. Jinx Dawson’s vocals carried a genuinely eerie quality over music that leaned into dark, occult themes with total commitment.
The timing is almost too strange to believe.
Coven’s track stands as a fascinating historical footnote, proof that the dark, heavy sound associated with metal’s most famous name was already circulating in 1969.