Archspire Turn ROSÉ & Bruno Mars’ “APT.” Into a Technical Death Metal Blitz

ROSÉ and Bruno Mars built “APT.” around a hook simple enough for a stadium of strangers to chant after one listen. Archspire build songs around riffs most guitarists need years just to survive. Put those two approaches in the same room and the result shouldn’t work. On Musora’s “On The Spot” series, it does — almost from the first bar.

The series puts artists in Musora’s studio to rebuild a chosen song in real time, with no extended rehearsal beforehand. There’s no single, no album rollout — just a band working through a track on camera, deciding what to keep and how far an arrangement can go before it stops being the original song. For Archspire, that meant a single day with “APT.” in front of them, breaking down its chant, groove and hook before reconstructing all three in their own technical death metal language.

From a Pop Hook to Tech-Death Chaos

“APT.” is a useful song to hand a technical band, even if that’s not obvious at first. Underneath its pop-rock polish sits a simple, repeating chant, a direct groove, and a chorus that’s nearly impossible to forget after one pass — exactly the kind of ingredients a band like Archspire can grab onto.

Archspire treat that structure as scaffolding rather than something to discard. The chant survives, recognizable, even as everything around it changes shape. Guitars swap the original’s pop-rock drive for rapid-fire riffing, syncopation and layered technical runs. The drums push the groove into blast-beat intensity. And the clean pop vocal turns into rapid-fire, aggressive extreme-metal phrasing built for impact over melody.

What’s notable is what doesn’t get lost. Even at full speed and density, the cover stays anchored to “APT.”‘s rhythmic identity — close listeners can still trace the original underneath the chaos, which is a harder trick to pull off than simply burying the song completely.

Why Archspire Were the Right Band for This

Archspire weren’t a random pick. Speed, precision and rhythmic complexity are baseline for them — what sets them apart is making dense, complicated arrangements feel physical and immediate rather than just technically impressive on paper. That’s the difference between a generic “heavy version” of a pop song and this: Archspire don’t bolt distortion and harsh vocals onto “APT.” They take it apart and rebuild it around their own instincts.

The episode also gives space to something simpler: watching elite musicians have fun with material nothing like what they’d normally write. The chemistry between the band carries almost as much of the entertainment as the cover itself.

Archspire’s “APT.” Cover Is More Than a Joke

There’s an obvious punchline in pairing one of 2024’s biggest pop hits with one of extreme metal’s fastest bands, and the contrast alone is funny. But the cover holds up because Archspire treat the assignment seriously instead of using it to mock the source. Nothing here suggests pop music is beneath them — the entertainment comes from hearing how much can be pulled from a song once it’s run through a completely different set of musical instincts.

That’s also why the episode works for more than one audience. Archspire fans hear the band’s technical style applied somewhere unexpected. “APT.” fans get a wildly different but still traceable version of the song they already know. And anyone who likes watching skilled musicians improvise under pressure gets both the process and the payoff.

Archspire don’t try to make “APT.” more serious, darker or “metal” in some generic way — they turn it into an Archspire song for a few chaotic minutes without losing the hook that made the original impossible to forget in the first place. For anyone who’s wondered what “APT.” sounds like after being run through Archspire’s impossibly fast machinery, Musora’s “On The Spot” episode finally has the answer.

For more songs that found a louder and heavier second life, explore our guide to the 15 Best Rock and Metal Covers of Pop Songs of All Time.