My son went to prom inside a body bag — it was a brilliant stunt his classmates will never forget

This gag was dead on arrival.

A UK teen raised eyebrows at his high school prom after arriving at the bash in a body bag as part of a macabre stunt.

“They’ll think of that for years to come,” the boy’s mom Laura Jameson, 38, who helped orchestrate the goof, told Kennedy News.

Her son Lucas, who is in 11th grade, had reportedly wanted to make a memorable entrance at the dance.

After ruling out hiring a helicopter, the youngster decided on being thrown out of a van like a corpse — an idea that had been floated by a family friend.

His mom dubbed it a “brilliant idea.”

“It’s always really good to be original and think of something different,” gushed the mother of four, who ordered three body bags — for Lucas and two friends — and balaclava face masks for the bag transporters in preparation for her son’s grand entrance.

However, Laura, an autism support officer, feared she might get in trouble for procuring such suspicious items, explaining: “If somebody was watching me, I probably would have had the police come ’round.”

Lucas’ friends were also initially reticent about performing the bizarre stunt; however, they eventually agreed after he told them they couldn’t accompany him to prom if they didn’t participate.

Ahead of the party, the Brit’s mom informed the teachers of their plan so that they could take pictures — and also, presumably, so they wouldn’t call the authorities.

When the big day arrived on July 6, Lucas’ stepdad Dean Jameson and two of their friends donned balaclavas, drove them to the venue, and helped get inside their body bags.

They then took the faux corpses out of the bag and laid them on the ground before they unzipped them and the suit and sunglass-clad lads popped out like a boy band at the start of a music video, as seen in a Facebook video.

It’s safe to say they had the gag in the bag.

“Everyone said that was the best entrance they’d ever seen. All the teachers said it was absolutely original,” gushed Laura. “It’s better than just your traditional fancy car; I’ve never seen it done before.

“I think they’ll always remember that, and I think everyone else will as well.”