Taylor Swift, Este Haim and Alana Haim had a dance party after the Knicks pulled off the biggest comeback in NBA Finals history over the Spurs in Game 4 on Wednesday night.

The trio, who brought the energy on Celebrity Row at Madison Square Garden, danced to the song “Girls Just Want To Have Fun” by Cyndi Lauper, as seen in a video by the singing sisters on social media Wednesday night.

“Girls just wanna have PUN,” the caption read, referring to their blue and orange shirts with Knicks puns.

Swift’s shirt said “Stevie Knicks,” which was a nod to her the legendary singer, who she’s been friends with for some time.

Alana donned a shirt with “Knickelback,” a twist on Canadian rock back, Nickelback.

Este’s shirt, “Knickole Kidman,” was a reference to actress Nicole Kidman.

They were courtside with actress “Law & Order: SVU” star Mariska Hargitay — a close friend of Knicks point guard Jalen Brunson — who also donned a “Stevie Knicks” shirt.

Swift, who owns multiple properties in New York City, and Co. were dancing and cheering throughout the game.

They were seen jumping up and down in the back hallways of MSG with the Knicks’ Seventh Ave Squad — the team’s entertainment team — after the Knicks rallied from a 29-point hole in the third quarter to beat the Spurs 107-106.

A video also emerged of an overzealous fan attempting to take either a selfie or shoot a video being shooed away by security.

Swift, who will tie the knot with fiancé, Chiefs tight end Travis Kelce at MSG on July 3, was waving a towel and cheering during the celebrations.

The Knicks set the record for the biggest NBA Finals comeback, according to ESPN.

They sealed the win with a heroic play from forward OG Anunoby, who tipped in a rebound of a long 3-pointer by Brunson with 1.2 seconds remaining to give the Knicks the lead.

“It was cool, everyone’s pretty excited, I’m excited too,” Anunoby said after the game, which had reporters laughing. “Were enjoying it right now but we’re just look toward the next game.”