Travis Kelce and Niecy Nash are costarring besties on the set of “Grotesquerie.”Instagram/@niecynash1

Travis Kelce is making fans off the field, with a source telling us he’s won over new costar Niecy Nash on the set Ryan Murphy’s “Grotesquerie.”

While Kelce and Nash have been posting pics together on social media, we hear it’s not just for show. The costars really do like each other.

“They would not stop laughing the entire time they were filming,” a source tells Page Six. “They have a similar sense of humor and bonded over their joy for life.”

It’s not just for ‘the gram.’ We hear the costars really do get along.Niecy Nash / Instagram

It’s so far unclear exactly what role Kelce is playing.Niecy Nash / Instagram00:0203:48

While it is unclear what role Kelce is playing in the upcoming horror show for FX, it will be his first major acting debut.

A spy on set tells us that Emmy winner Nash is “very supportive of his leap into acting.”

On Tuesday, Nash, shared an Instagram pic of the Kansas City Chiefs star, with the caption, “This is what happens when WINNERS link up. Welcome to ‘Grostequerie!’”

The actress also shared a video on Friday of the cast and crew showing off their best dance moves for Kelce so that he can take them back to the football field.

Kelce appeared in the video to pick his favorite dance, a Lil Kim move performed by Nash.

Nash captioned the vid, “Don’t be fooled by the video…. We are working hard for @ryanmurphyproductions… In between shots is another story ”

The NFL star has been making moves into Hollywood since dating Taylor Swift.GC Images

Nash has been posting videos of their time on set.Getty Images for iHeartRadio

Nash then tagged Kelce and wrote, “our crew has got your back!”

Nash also shared a video of herself and Kelce filming a restaurant scene, saying, “Travis Kelce, how many meatballs have you eaten today?”

He replied, “Well, I’m eating them by the half, so probably 10.”

The show will be Kelce’s first major television acting role.Getty Images for American Express Presents CARBONE BEACH

Courtney B. Vance and Lesley Manville also star in the series.

Kelce, who appeared as a host on ‘SNL,” and had his own dating show “Catching Kelce,” will also appear as a host on Amazon Prime’s upcoming “Are You Smarter than a Celebrity?”

Kelce was also in Paris over the weekend for his girlfriend Taylor Swift’s “Eras” tour — where he was spotted dancing along to Swift’s 2019 hit, “Lover,” alongside their pals Gigi Hadid and Bradley Cooper.