Ariana Grande and Ethan Slater Step Out for Broadway Show in NYC and Pose for Photos Backstage

The pair were photographed backstage at 'Gutenberg! The Musical!' on Sunday with Josh Gad and Andrew Rannells

Ariana Grande and Ethan Slater enjoyed some time on Broadway this weekend.

Andrew Rannells, who is currently starring in Gutenberg! The Musical, posted a photo on Instagram Monday featuring the "7 Rings" singer, 30, and Spamalot star, 31, alongside himself and his Gutenberg! costar Josh Gad.

"We had some big fun in Schlimmer yesterday! Spamalot’s Ethan Slater AND Michael Urie! Two great guys to eat dreams with. Plus Ariana Grande! It was a perfect Sunday. Go see Spamalot! 🧡🧡🧡," Rannells, 45, captioned the photo, taken after a performance of Gutenberg! The Musical on Sunday.

In the image, Slater and Grande are all smiles — the former is clad in a striped white sweater, while the latter is in a gray sweater. Gad, 42, was pictured in a brown suit with a loosened tie, and Rannells was seen sporting an argyle sweater.

Related: Ariana Grande and Ethan Slater's Relationship Is 'Much Different Than What Has Been Portrayed': Source (Exclusive)

Earlier this month, Grande was spotted cheering on Slater during the first preview performance of Spamalot at the St. James Theatre in New York City.

In an Instagram video shared by show attendee Jim Glaub, the pop star could be seen watching and smiling from the audience as colorful confetti fell and those around her cheered.

An insider told PEOPLE at the time that Grande has been a “big supporter” of the production and “already has plans to go again.”

“She has seen it during tech rehearsals,” the source said. “She's a theater kid at her core, so you see she really feels at peace being around Broadway."

Grande attended the performance with her brother Frankie Grande and friend Doug Middlebrook, and she was later spotted leaving the show’s opening night with Middlebrook.

Related: Ariana Grande and Ethan Slater Go on Disney Date with Pals: 'Her Friends Love Him' (Exclusive Source)

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The photos featured Grande smiling while placing a paper Spamalot crown on her head and holding a program for the show. Dressed in a knight's costume, Middlebrook laughed as he placed a crown on the musician, who sported a beige dress, brown coat and boots and white lace gloves.

The "Thank U, Next? hitmaker and Slater met on the set of the upcoming movie adaptation of Wicked, and developed a romance offscreen. Slater, who made his Broadway debut in SpongeBob SquarePants: The Broadway Musical, is set to take on the role of Boq, the love interest of Elphaba’s sister Nessarose who is infatuated with Glinda (played by Grande).

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