For roughly two hours Wednesday night, Knicks fans collectively prepared for heartbreak.

By halftime of Game 4, Madison Square Garden was on edge, social media was melting down, and the Spurs looked poised to even out the score of the NBA Finals.

Then the Knicks pulled off the largest comeback in NBA Finals history.

New York erased a 29-point deficit, beat San Antonio 107-106 on an OG Anunoby tip-in with 1.2 seconds remaining, and moved one win away from its first championship since 1973.

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The result transformed social media from a digital wake into a rolling highlight reel of celebration, as videos of Knicks fans screaming in bars and on city streets flooded timelines.

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Here are some of the biggest moments from Game 4, both on the court and online.

OG Anunoby's game-winner instantly became the play of the night

For most of the fourth quarter, social media was busy trying to process how the Knicks had climbed back into the game. Then Anunoby gave everyone something else to talk about.

With seconds remaining, the Knicks forward tipped in the go-ahead basket, sending Madison Square Garden into a frenzy. Within minutes, timelines were full of every possible angle of the play, from television broadcasts and slow-motion replays to fan-shot footage captured from the upper deck — and Ben Stiller's courtside iPhone.

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Celebrities had their own viral moments

The Knicks' playoff run has turned Madison Square Garden into one of the internet's recurring characters, and Wednesday night was no exception.

As the comeback gained momentum, cameras repeatedly cut to celebrity fans sitting courtside, including Timothée Chalamet, Taylor Swift, Spike Lee, and Mariska Hargitay, who collectively lifted Donald Trump's curse. Their reactions quickly became viral content in their own right, with clips spreading across social media almost as quickly as game highlights. Who will ever be able to forget Taylor Swift's white-girl dancing to Jalen Brunson's three-pointer? Or Larry David's near heart attack over Josh Hart's missed layup in the fourth?

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Madison Square Garden completely lost its mind

MSG quickly became the center of the internet's attention. Fans posted videos from every level of the arena, capturing everything from the mounting stress before the Knicks' comeback to the chaos that followed Anunoby's game-winner. While television cameras focused on the court, fans documented the comeback from every imaginable angle, creating a crowdsourced record of the historic night.

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The celebrations spilled out into New York City

The final buzzer marked the beginning of another wave of viral content.

Videos posted throughout the night showed fans — like New York City mayor Zohran Mamdani — erupting in joy inside bars, chanting in the streets, and celebrating well after the game ended. For a few hours, timelines became a live feed of New York City's collective joy.

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The memes arrived almost immediately

No major sports moment is complete without memes, and Game 4 produced plenty. Social media users compared Anunoby's game-winner to everything from classical works of art to scenes from the viral thriller Obsession, while others turned Victor Wembanyama's reaction into an instant meme format. Knicks fans also resurfaced years-old posts from Josh Hart to spur up some momentum.

In the hours after the final buzzer, timelines became a mix of celebration, disbelief, and attempts to explain the inexplicable through increasingly absurd references.

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The Knicks still need one more win to secure their first NBA championship in more than five decades. But regardless of what happens next, Game 4 already feels destined to live on as one of those rare internet moments that transcends sports.