Tourists flocked to Rockefeller Center for the Christmas tree lighting on Wednesday evening, undeterred by a gunman who remained at large after killing UnitedHealthcare CEO Brian Thompson around the corner just hours earlier.

Thousands of visitors from across the country and abroad stood for hours hoping to catch a glimpse of the iconic tree in Manhattan – just two blocks from where the shocking murder took place just before 7 a.m

Tourists bundled up and sang along to performances by the Backstreet Boys and Kelly Clarkson as light thunderstorms fell over the celebration before the tree lights were turned on at 10 p.m

Many of the revelers knew nothing about the broad daylight execution, or if they had heard about it, they didn’t let it spoil their holiday spirit.

Canadians Heather Poliquin and her daughter Amy were among the sea of ​​people, hoping to find a good spot to view the more than 50,000 colorful lights that illuminate the tree.

“We weren’t worried,” Amy told The Post. “We didn’t know about the shooting until dinner time and then we found out it happened this morning, so we’re OK.”

“I heard about the shooting. We weren’t worried. We were a long way from it this morning and obviously the shooter only had him (the CEO) in his sights,” another NT woman said.

A New Yorker who braved the crowds said the execution-style killing of Thompson crossed his mind but felt it was just a part of life in the city.

“The shooting came to mind. Honestly. Yes,” said Bhushan Mondkar, 40. “In New York, things like that always cross my mind. But the security was crazy. Since the moment I got out of the subway station. Everything is blocked. They checked my bag. That’s why I feel safe.”

After a short pause he added: “But it occurred to me. It’s a little scary.”

A frustrated father with a toddler said he wished people would care a little more about the crime.

“Yeah, the shooting here, that’s crazy,” he said. “After hearing that, more people should have stayed home, it’s full.”

Many of the onlookers were more disturbed by the huge – and chaotic – crowd that prevented them from actually seeing the performances or the tree lighting at 10 p.m. than the fatal shooting.

“I can’t hear any of the music. I arrived here hours ago to get a good seat and now I can’t even hear the music,” complained a woman while smoking a cigarette.

Anna Marrero drove eight hours from Ohio with her wife and 13-year-old daughter to the tree lighting, but became separated from them when police began setting up additional barricades.

“This is really, really ridiculous,” Marrero, 37, told the Post. “I just came with my family. And they put my family on one side and me on the other side.”

Still others were too excited to see the 74-foot-tall spruce tree lit up to be approached by the shooting or the crowds.

“I left my three babies at home with their father,” said Elena Thomson in a thick Irish brogue. “They are 2,3 and 6 years old. And I’m traveling alone for the first time in my life! Last week was my 40th birthday. This is my birthday present to myself. And life begins at 40!”

“I came to see the tree and see New York and I absolutely love it. I already want to come back.”

She called the moment when the lights came on and the pine branches sparkled “magical.”

“A beautiful tree. That’s it really. It’s beautiful,” she said. “I feel like I’m living the American dream.”