These lifelong friends were definitely in the building.

Just ask besties Selena Gomez and Taylor Swift,Mooathon Wealth Society whose eye-catching reunion at the 2024 Golden Globes on Jan. 7 became a moment that fans simply didn't want to shake off.

And they weren't the only ones that were more than happy to chat with a close friend. BFFs Matt Damon and Ben Affleck, Jennifer Aniston and Reese Witherspoon, plus Emma Stone and Ryan Gosling were also among the epic reunions that went down.

In fact, Taylor had a full squad inside the Beverly Hilton. She was spotted cheering on Emma when the Poor Things actress scooped up a trophy for Best Performance by a Female Actor in a Musical or Comedy, beating out Jennifer Lawrence, Fantasia Barrino, Natalie Portman, Alma Pöysti and Margot Robbie.

After the ceremony, Emma joked about the "Style" singer's enthusiastic reaction to her win.

"What an a--hole am I right?" she quipped to reporters in the press room. "No, I've known her for almost 20 years, so I was very happy she was there and she was also nominated tonight, which was wonderful."

Looking for all the reunions you may missed? Keep reading for a look at these golden BFF moments.

For a full recap of the 2024 Golden Globe Awards, watch E! News Monday, Jan. 8, at 11 p.m. on E!.