Billie Joe Armstrong wearing a BRAT cap at Coachella was the crossover episode we didn’t see coming

Charli XCX may have triggered a juicy Coachella discourse with her now-infamous “Miss Should Be Headliner” sash last week, but Billie Joe Armstrong just pulled the most unexpected plot twist of the festival’s second weekend — and all it took was a certain bright green BRAT cap.

During Green Day’s Weekend Two set at Coachella 2025, the punk rock frontman strolled to the edge of the stage, locked eyes with a fan, and casually asked:

“Can I borrow your hat?”

That hat turned out to be a bright green cap with the word BRAT printed on it—also the name of a Charli XCX album. As he put it on, cheers erupted from the crowd.

Armstrong slipped it on like a crown, soaking in the screams as he hyped the crowd with arms wide open, embracing the moment like the generational legend he is.

Whether it was a playful nod, subtle shade, or a peace offering to cool the fanbase feud sparked by Charli’s sash moment, one thing’s for sure: both fandoms had a field day.

“Ended unnecessary beef”: Fans react to Billie Joe Armstrong wearing a BRAT hat

The unexpected moment quickly circulated online, especially on X (formerly Twitter), where fans shared their reactions. Some saw it as playful, while others took it as a statement in light of the online tension between fan bases.

Online user @horejsiii expressed love for Armstrong, saying:

“We love a punk king who keeps up with pop girlies”

@MarlenS68956787 wrote:

“This man practices what he preaches”

@hisdrivee noted:

“He’s such a king for this”

Netizen @SheKnowsScience added:

“The man who gave us ‘American Idiot’ now promoting ‘BRAT’—this is a crossover episode I didn’t know I needed.”

Meanwhile, @4mn2te remarked:

“Ending those jealousy rumors god bless him”

With crying emojis, @aloscinema wrote:

“Ended unnecessary beef made by twitter freaks”

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The Background: Charli XCX’s afterparty sash sparks debate

The backstory goes back to Weekend One when Charli XCX attended her own afterparty wearing a sash that read: “Miss Should Be Headliner.” While many fans found it fun and tongue-in-cheek, others — particularly Green Day supporters — felt she was taking aim at the band, who currently headline the festival.

Online discussions quickly followed, with people defending or criticizing the moment from both sides.

“There is a literalism epidemic - folks just can't conceptualize of having a little fun, a little laugh, it's really not that serious people, you don't have to be so damn literal all the time, she has friends who like being funny and silly lol,” wrote @imgregorous.

“She did said that she wanted to be a pick me girl before so this is unsurprising loserish behaviour from her,” said @vigilantayshh.

“Maybe i know both of them but my dad doesnt know who the f is xcx but know what is greenday, and others dads too i think, so shes not bigger than greenday,” commented @moraldestroy.

“The crowd for charli rn is insane yes miss should be a headlinerrrrr,” @thinkigeturdeal stated.