There are few bands capable of turning a stadium into something that feels both colossal and intimate quite like Metallica. Playing Cardiff’s Principality Stadium as part of the seemingly unstoppable M72 World Tour, the metal icons arrived with a support bill that showcased just how healthy heavy music is in 2026. From the unrelenting ferocity of Knocked Loose to Gojira’s masterclass in modern metal, every band delivered a performance worthy of the occasion before Metallica reminded everyone why they continue to sit alone at the summit of the genre.
Opening proceedings, Kentucky’s Knocked Loose wasted no time in shattering any lingering complacency among the early arrivals. Any doubts over whether one of the most uncompromising bands in modern hardcore could translate their live show to a stadium setting disappeared within moments. Bryan Garris’ unmistakable, high-pitched scream cut through the cavernous Principality Stadium with startling clarity, while Isaac Hale and Nicko Calderon’s punishing guitar work delivered wave after wave of bone-crushing riffs. Backed by Kevin “Pacsun” Kaine’s relentless drumming and Kevin Otten’s thunderous bass lines, the band transformed one of the UK’s biggest venues into something that felt far more intimate—and far more dangerous.
Their set was an unrelenting barrage of breakdowns, blast beats and metallic hardcore that rarely allowed the audience a moment to catch its breath. Every transition landed with pinpoint precision, the crushing grooves creating an irresistible momentum that spread across the stadium. Even among a crowd made up largely of lifelong Metallica fans, there was an undeniable curiosity that quickly turned into admiration as the band commanded thousands with absolute confidence. The sheer intensity of their performance proved that brutality and technical precision can coexist without sacrificing either.
Circle pits opened across the standing area almost instinctively, responding to every earth-shaking breakdown and rhythmic shift. Garris barely needed to encourage the audience, who reacted in unison to each surge of intensity. Rather than feeling like an odd stylistic choice on a stadium bill, Knocked Loose felt like the perfect reminder that heavy music continues to evolve without sacrificing its intensity or authenticity.
Closing their set with one final devastating assault, the Kentucky outfit left the stage having undoubtedly won over countless new fans. Their half-hour performance never let up, yet it never descended into noise for noise’s sake. Precision, confidence and absolute conviction underpinned every song, making it one of the strongest opening performances to grace the M72 tour. It was a fearless statement that hardcore belongs on the biggest stages in the world and that Knocked Loose are more than ready to lead the genre’s next wave.
If Knocked Loose represented the future, Gojira demonstrated why they remain one of the most respected and consistently brilliant live bands in modern metal. The French quartet have spent more than two decades building a reputation as one of the genre’s most formidable live acts, and every minute of their Cardiff performance reinforced exactly why. Their blend of technical precision, crushing heaviness and emotional depth felt perfectly suited to the scale of the occasion.
From the moment they walked on stage, Gojira established complete control of the stadium. Joe Duplantier’s immense rhythm guitar tone filled every corner of the venue, effortlessly shifting between punishing grooves and soaring melodic passages, while Christian Andreu’s intricate lead work added layers of texture throughout the performance. Behind them, Mario Duplantier once again demonstrated why he is regarded as one of metal’s finest drummers. Every blast beat, tom fill and intricate rhythmic flourish was delivered with astonishing precision, yet never at the expense of raw power, providing the heartbeat for a set that never lost momentum.
Visually, the band’s understated production allowed the music to remain the focal point. Stark lighting, atmospheric visuals and perfectly timed strobes complemented the performance without overwhelming it, creating an immersive experience that drew the audience further into Gojira’s world. Towering grooves gave way to expansive melodic passages before crashing back into earth-shaking heaviness, with the band moving effortlessly between moments of crushing intensity and almost cinematic atmosphere. The balance between technical musicianship and raw emotion was nothing short of remarkable.
What has always separated Gojira from many of their contemporaries is their ability to combine technical excellence with genuine emotional resonance. Themes of environmental awareness, spirituality and humanity are woven naturally into their music, giving even their heaviest moments an underlying sense of purpose. Joe Duplantier’s connection with the audience felt sincere throughout, expressing gratitude for the reception while allowing the music to speak for itself.
By the time the explosive finale arrived, Gojira had delivered a set that was as inspiring as it was crushing. They didn’t simply warm up the crowd for Metallica—they reminded everyone why they are widely regarded as one of the defining metal bands of the twenty-first century. Judging by the reaction from the Cardiff audience, they also left with more than a few new converts.
As darkness settled over Cardiff, Ennio Morricone’s ‘The Ecstasy Of Gold’ echoed around the Principality Stadium, sending a ripple of anticipation through the sold-out crowd. Few introductions in live music carry quite the same sense of occasion, and when Metallica finally emerged, the roar was deafening.
Rather than relying solely on nostalgia, Metallica once again demonstrated why the M72 production has become one of the defining stadium shows of the decade. Their in-the-round stage ensured every section of the stadium felt involved, while the band’s constant movement across the circular platform made even the upper tiers feel connected to the performance.
Metallica detonated into their set with a thunderous ‘Creeping Death’, instantly igniting the Principality Stadium into a unified force of voices chanting the iconic “die” refrain in unison. The response was immediate and overwhelming, locking the entire venue into one of the most recognisable moments in metal history and setting the tone for everything that followed—commanding, communal and deafening.
Without pause, the band rolled into ‘For Whom The Bell Tolls’, which landed on another level entirely in a stadium of this scale. The slow-building bass intro reverberated through the venue like a warning siren before exploding into its signature riff, met by a roar so powerful it felt almost physical. Hetfield delivered it with commanding authority, while the band locked into a groove that felt heavier and more deliberate than ever, transforming a classic into something monumental in execution.
‘The Memory Remains’ provided one of the defining moments of the night for me. The chorus erupted into a mass, spine-tingling singalong from the record-breaking crowd, with tens of thousands of voices carrying the refrain high above the stadium lights. The effect was electric—an almost hypnotic wave of sound that seemed to suspend time, turning the song into a communal release rather than just a performance.
James Hetfield remains one of rock’s greatest frontmen. His voice has aged gracefully, retaining the grit and authority that defined Metallica’s classic years while gaining an almost conversational warmth between songs. Lars Ulrich drove the evening with boundless enthusiasm, Kirk Hammett delivered his trademark fluid solos with effortless style, and Robert Trujillo’s infectious energy never dipped for a second.
The setlist balanced every era of the band’s career with remarkable confidence. Newer material sat comfortably alongside timeless classics, proving that ’72 Seasons’ has earned it’s place beside ‘Master Of Puppets’, ‘One‘, ‘Fuel’, ‘Seek & Destroy’ (with its now legendary beach balls) and the inevitable, earth-shaking finale of ‘Enter Sandman’. One of the night’s lighter moments came during Trujillo and Hammett’s customary ‘doodle’, as the pair paid tribute to Wales with a spirited rendition of Tom Jones’ ‘Delilah’ drawing huge cheers from the Cardiff crowd.
What continues to separate Metallica from many of their peers is not simply the quality of their songs but the genuine joy they still seem to find in performing them. There was no sense of obligation or routine despite four decades at the top, nor any suggestion of a band simply moving through the motions on another night of a world tour. Instead, there was a visible sense of ease and connection between the four members, built on decades of shared history yet still carrying a present-tense spark that translated directly to the crowd.
Every exchange between songs felt natural and unforced, whether it was Hetfield’s brief reflections, Ulrich’s ever-animated presence behind the kit, or Hammett and Trujillo’s playful interplay that cut through the scale of the production with moments of levity. Even in a stadium of this size, there were flashes of something more intimate, as if the band were still capable of reaching individuals within the wider roar. That balance between spectacle and connection is something few acts at this level ever sustain, yet Metallica continue to do so with remarkable consistency, even as the production grows more ambitious with each passing tour.
As fireworks erupted above the stadium and the final notes rang out across Cardiff, the night felt like more than another stop on a world tour. It became a celebration of heavy music across generations, unified in one space without hierarchy or division. Knocked Loose embodied its uncompromising future, Gojira its progressive and innovative present, and Metallica once again reaffirmed why they remain the benchmark against which all stadium metal is measured.
Three generations of heavy music shared one stage, each leaving a distinct but equally vital imprint. From the raw immediacy of hardcore to the precision and scope of modern metal, and finally to the stadium-commanding force of one of the genre’s defining bands, the evening traced a lineage of heaviness that felt both historical and ongoing. On a warm summer night in the Welsh capital, metal wasn’t simply alive—it felt unified, confident, and very much still evolving.
