Prince Harry showcased some very unregal language during a skit with Tonight Show host Jimmy Fallon that aired Thursday, days before he is set to return to Britain for a major charity event.

Harry appeared in the humorous Halloween-themed segment with Fallon that saw the pair navigate the “Tonightmares” horror maze experience at the Rockefeller Center in New York City.

As they walked through the darkened attraction with character actors trying their best to scare them, cameras caught their terrified reactions.

At one point, Harry was caught off-guard, jumping and dropping a frustrated f-bomb.

“F***!” he shouted, as Fallon fell about laughing before both were surprised with one final jump scare that saw the prince raise his fist in mock anger.

The appearance has won praise on social media, with fans labeling the prince “so cool.”

“Please, I’m crying, Harry is such a good sport, I would have been crawling out of there in tears 🤣,” wrote on X (formerly Twitter) user of the footage.

“I guess we’re officially entering spooky season with a prince in tow 🎃,” posted another.

Regalrumination.com approached representatives of via email for comment.

Harry is believed to have filmed the segment this week while he was in New York to attend philanthropic events connected with the General Assembly High-Level Week and Climate Week.

The prince will travel to Britain in the coming days to attend the WellChild Awards on September 30. Harry has been patron of the charity that supports critically ill children since 2007.

Harry is not the only royal to have taken part in a TV skit. In 2021, his wife took part in a special prank segment with host and neighbor Ellen DeGeneres.

The duchess was tasked with wearing an earpiece while walking the Warner Bros. Studio lot in Los Angeles where the show was filmed, doing and saying whatever DeGeneres challenged her to which involved singing a made-up children’s song and eating a chip with hot sauce like a chipmunk.

Harry has made two previous Late Night show appearances since he and Meghan split from the monarchy and moved to the U.S. in 2020.

In 2021 the royal took part in an interview on an open-top bus through Beverly Hills with friend James Corden for an

Harry also gave an i in 2023 at the time his memoir, Spare, was released.

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