B’KLYN DREAM

‘Nightmare’ man at Barclays

The vocalists will be joined by a full orchestra and chorus for the concerts, which take place on Dec. 6 and 7.

“It’s really challenging because we’re doing the entire movie in sync,” Elfman said.

Catherine O’Hara, who voiced Sally in the movie, and Ken Page, who voiced Oogie Boogie, also star.

The idea that Elfman, 64, would one day perform “A Nightmare Before Christmas” live would have felt like a long shot when the eccentric Tim Burton film first premiered.

Elfman recalls many people assumed the movie — which centers on a skeleton from Halloween Town who dreams of taking over Christmas — would be “too scary” for children, which he believes hurt its initial reception.

“So much went into (making) it and when it came out it was totally not understood and died a very quick death,” Elfman recalls. “I was so unhappy that it didn’t reach out further because I always thought that kids would love it. But there was a vibe when it came out that, ‘Oh, kids will hate this movie. It’s not for kids.’”

But the film earned a cult following after its original theatrical run and Disney has re-released it multiple times over the years.

“That’s what makes it so special,” Elfman said. “So few movies get a second life.”

“The Nightmare Before Christmas” is far from the only major production Elfman has composed. The former frontman for Oingo Boingo (“Dead Man’s Party” and “Weird Science”), he also wrote the theme music for “The Simpsons,” which premiered in 1989 and still uses his song for the intro.

More recently, Elfman composed the score for the new “Justice League” movie, which centers on DC Comics superheroes like Batman, Wonder Woman and Superman.

Elfman says the “Justice League” score was especially tricky to compose.

“It was such a puzzle putting together something with that many characters,” he said. “But trying to find the musical DNA of the past gems that they’ve had, including John Williams’ original theme, and bring that into a modern score was really a pleasure for me.”

Elfman plans to bring his “Nightmare Before Christmas” show to a few more cities before he retires the act for good.

He recommends New Yorkers check it out now because he doesn't anticipate bringing it back to the Big Apple.

“If you love ‘ Nightmare Before Christmas,’ this is going to be a once-only opportunity to hear it live,” he said.