Things got a bit strange at Broadway’sDear Evan HansenTuesday night.

Stranger Thingsstars Maya Hawke and Sadie Sink were in the audience of New York City’s Music Box Theatre, to support their Netflix costarGaten Matarazzoon hisfirst performance in the Tony-winning best musical.

All three posed together for photos after the show, Matarazzo — who is playing Evan’s best friend Jared Kleinman in the show — sitting on the stage while Hawke, 24, and Sink, 20, chatted with him from the audience (backstage visits on Broadway are still suspended due to ongoing COVID safety protocols).

If Matarazzo looked particularly gleeful it’s because he had no clue Hawke and Sink were coming.

“They surprised him, which was super cute!” a source on the scene exclusively tells PEOPLE, adding that the two praised Matarazzo for his performance. “Maya and Sadie loved the show.”

Natalie Powers/Dear Evan Hansen

Gaten Matarazzo, Maya Hawke, and Sadie Sink after Gaten’s First Performance in Dear Evan Hansen on Broadway Where was the image taken – Dear Evan Hansen at The Music Box Theatre, NYC When was the image taken – Tuesday evening, July 19, 2022 Who took the photograph – Natalie Powers Full credit line – Gaten Matarazzo, Maya Hawke, and Sadie Sink after Gaten’s First Performance in Dear Evan Hansen on Broadway © Natalie Powers via Dear Evan Hansen

They weren’t the only ones who turned up on Tuesday as viewers of the hit Netflix show flooded the theater to cheer on Matarazzo. “Stranger Thingsfans turned up for Gaten’s first performance,” the insider adds. “He got huge entrance applause. And there weretonsof fans outside at the stage door. It was mobbed!”

While Matarazzo did his best to greet them all, Hawke and Sink made their exit — and didn’t need to travel to the Upside Down to do it, either. “Maya and Sadie walked out the stage door unnoticed and ran down 45th Street,” the source jokes.

Gaten Matarazzo, Maya Hawke, and Sadie Sink after Gaten’s First Performance in Dear Evan Hansen on Broadway

Dear Evan Hansenmarks the long-awaited return to the stage for Matarazzo. The 19-year-old actor — anadvocate for cleidocranial dysplasia, a condition that affects the development of bones and teeth— made his Broadway debut at the age of 9 in Priscilla, Queen of the Desert. He went on to appear in Godspell in 2013 for a one-night-only performance and was last seen as Gavroche in the 2014 revival ofLes Misérables, a role he also played on the 25th Anniversary North American tour.

“I’m so stoked,” he said onLive with Kelly and Ryanin May. “I got the news a little while ago, which is so mean because I want to tell everyone in my entire life and I haven’t been able to until now. Now I can, and I’m so excited!”

“Words could never express how truly honored I am to be a part of this company,” he added, in a statement. “This show has taught me so much about myself and to be able to participate in any capacity, let alone on Broadway, makes me want to melt. I am ecstatic to be back on stage and eternally grateful for the opportunity.”

Gaten Matarazzo, Maya Hawke, and Sadie Sink after Gaten’s First Performance in Dear Evan Hansen on Broadway Where was the image taken – Dear Evan Hansen at The Music Box Theatre, NYC When was the image taken – Tuesday evening, July 19, 2022 Who took the photograph – Natalie Powers Full credit line – Gaten Matarazzo, Maya Hawke, and Sadie Sink after Gaten’s First Performance in Dear Evan Hansen on Broadway © Natalie Powers via Dear Evan Hansen

Dear Evan Hansenreopened its Broadway production in December 2020.

Trying to improve his self-image, Evan writes himself a letter that is mistaken for a classmate’s suicide note and rides that error to popularity. (The story is loosely based on an experience Pasek witnessed in high school).

Since first opening on Broadway in December 2016, the Stacey Mindich-produced show has become a sold-out smash, its message of mental health awareness, teenage isolation and the importance of inclusiveness resonating with audiences of all ages. The show won six Tonys, the Grammy for best musical theater album, and the Oliver for its London production.

The musical now has three productions running across the globe, with its Broadway, North American Tour and West End companies once again playing in tandem.

Zachary Noah Piser, who currently plays Evan on Broadway, is making history asthe first Asian American actor to play the role full-time. The production also currently stars actressJessica Phillips, who starred with Matarazzo inPriscillaa decade ago.

But sadly, Broadway performances won’t be happening for long. Back in June, it was announcedDear Evan Hansenwould be closing on Sept. 18.

At closing, the production will have played 1,678 regular performances and 21 preview performances. The milestone makes it one of Broadway’s 50 longest-running shows of all time.

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Just last week, Ben Platt — who originated the role of Evan, won a Tony for his performance, and went on to play the part on-screen in the 2021 film adaptation —opened up about the closing news to PEOPLE.

“It had a beautiful, long run, and it was very of the moment — and now we’re at a new moment and it’s time for new pieces, but I think the legacy will live on and in the ways that it changed lives of a lot of young people and opened a lot of conversations,” Platt, 28, said, “I just hope they have a beautiful last couple weeks.”

For tickets, visitwww.dearevanhansen.com.

source: people.com