Timothee Chalamet's Behavior at Knicks vs. Celtics Game 4 Grabs Attention

Actor Timothee Chalamet stole the spotlight Monday night during Game 4 of the NBA Eastern Conference Semifinals between the New York Knicks and the Boston Celtics.

Sitting courtside at Madison Square Garden with girlfriend Kylie Jenner, the 29-year-old actor didn’t just watch the game — he lived every second of it.

A video shared by Bleacher Report on X captured Chalamet springing out of his seat, squatting near the sideline and shouting in sync with the crowd after a big Knicks play.

His over-the-top reactions had fans buzzing online.

“Dude’s really turning into a certified Knicks superfan,” one viewer wrote.

“Tim passes de vibe check,” another added.

One user joked, “He almost knocked down his own chair.”

“Completely locked in and paying attention,” another said.

Others praised his look and energy, writing, “Timmy’s dripped out, hoop dreams in full effect,” and “Timmy’s Knicks fever is real.”

Chalamet, dressed in a black long-sleeve shirt under a Knicks jersey, black basketball shorts, a silver chain and Timberland boots, made a strong fashion statement. Meanwhile, Jenner matched the energy in black leather pants, a simple black tank, strappy sandals and silver jewelry.

The Knicks secured a 121–113 comeback win, taking a 3–1 series lead. But it wasn’t just the victory that fans were talking about. 

Actor and New York Knicks fan Timothee Chalamet cheers while sitting courtside.

© Vincent Carchietta-Imagn Images

Chalamet’s visible passion for the team lit up social media, especially after a second video posted by SportsCenter showed him exchanging an energetic handshake with Knicks star Karl-Anthony Towns.

“Let’s [explicit] go!” Chalamet shouted while grinning ear to ear.

The Knicks will try to close out the series in Game 5 in Boston. Whether they win or lose, Chalamet’s courtside passion made one thing clear: he’s not just watching the Knicks — he’s riding every high and low with them.