Paris’s Domaine de Saint-Cloud is about to get considerably heavier, and with a bill running five days you’re going to need a plan. So strap in and get ready to check out the alt acts you cannot afford to miss!

Words by Felix Bartlett | Aug 18, 2026

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Last year we left Saint-Cloud sun-drenched, wine-soaked and still buzzing from Queens of the Stone Age tearing the main stage apart on the final night. Well, we’re back, and this time Rock en Seine is bringing one of the heaviest lineups the festival has seen in some time, properly living up to its name. Grab your Navigo pass, dust off those sunglasses, and get ready for five days of some of the heaviest and most vital names in alternative music descending on Saint-Cloud. Here’s who you need to see.

Biffy Clyro | Cascade Stage, Friday

A Friday afternoon Biffy Clyro slot on foreign soil takes some getting used to, but effectively they’re Rock en Seine’s bonus headliner. Simon Neil’s left hand is doing something borderline unfair on the fretboard from the first riff, and there’s every chance Bubbles will have half of Saint-Cloud singing lyrics they didn’t know they knew. Two decades in and the Scots are still finding new ways to make a festival field feel small.

The Cure | Main Stage, Sunday

The one that closes the whole thing out. Robert Smith doesn’t do rushed, and he shouldn’t have to, not with a catalogue this heavy resting in his back pocket. Expect the crowd to go completely silent for the openings, then completely unravel the second the drums kick in. Gothic, sprawling, and one of the greatest live discographies still walking the earth. This is going to be one hell of a way to round of the weekend!

Deftones | Main Stage, Saturday

Chino Moreno and co are just about to tear up Victoria Park headlining All Points East’s Outbreak day on 23 August, one week before they land in Saint-Cloud, which means this will be our second Deftones sighting in a fortnight and we’re not remotely mad about it. Their O2 run earlier this year had grown men in tears by the encore, Cherry Waves washing over 20,000 people before My Own Summer (Shove It) hit like the floor genuinely giving way. It would seem Victoria Park is going to be the perfect warm up before Saturday’s Main Stage slot wrapping up the summer festival season!

Turnstile | Cascade Stage, Saturday

You’d have to be living under a rock the past few years to not know why Turnstile deserve this slot. Crowds move differently for them now, and Saturday evening on the Cascade Stage is where you’ll see exactly why they’ve been handed something this size. Groove-heavy, genre-agnostic, and built for a pit that doesn’t stop moving from note one. This is going to be wild!

Amyl and the Sniffers | Main Stage, Saturday

Amy Taylor already left Saint-Cloud in ruins back in 2023, and there’s no reason to expect any restraint this time either, especially fresh off a run supporting Turnstile in the US. Feral, funny and completely uninterested in behaving itself, this is pub-rock turned up until the wiring complains.

LANDMVRKS | Main Stage, Saturday

A French metalcore band getting a Main Stage slot on home turf doesn’t come around twice, and LANDMVRKS look primed to make the most of it. Anyone who caught them tearing it up at Download already knows what’s coming: a crowd who knows every word before the first chorus even lands, and a band who feed off exactly that. Melodic, heavy, and clearly outgrowing the support slots at speed.

Lambrini Girls | Main Stage, Saturday

Opening the Main Stage on Saturday afternoon is a strange kind of trust, and Lambrini Girls are exactly the band you hand it to if you want the day to start with a jolt rather than a warm-up. Furious, funny, and completely unwilling to let anyone in that crowd off easy. Whether the British wit translates to a French crowd remains to be seen, but we wouldn’t bet against them winning the room either way.

AFI | Cascade Stage, Saturday

This is our second AFI sighting in as many weeks after Victoria Park, and honestly, we’ve been waiting a minute to see them back on a stage, so we’re taking every chance we can get. Three decades in and Davey Havok still commands a room like it owes him something. Fresh from a stacked run of festival dates alongside Deftones and Interpol, AFI on the Cascade Stage bring a catalogue that swings from hardcore roots to full gothic theatre without ever feeling like whiplash. Bring the eyeliner if you’ve got it.

Man/Woman/Chainsaw | Roc-On Stage, Saturday

Fresh off debut album Cannonball, the London five-piece bring a live show that’s genuinely hard to predict from one song to the next, and that unpredictability is exactly the appeal. Expect the Roc-On Stage to feel considerably smaller than it actually is once they get going.

High Vis | Bosquet Stage, Saturday

Full disclosure, we’ve been dying to see this lot for far too long, and Saturday evening on the Bosquet Stage is finally our chance. East London’s finest, and one of the best bands working in UK punk right now, full stop. Graham Sayle’s gnashing, Scouse-inflected snarl over Guided Tour’s mix of Britpop swagger and hardcore fury has made for one of the most acclaimed records of the last few years, and by all accounts their live shows are even better, with stage dives from the first song to the last. Anthemic in a way that sneaks up on you rather than announces itself. We will not be missing this one.