'It's Britney Witch' Co-Star Admits He Has 'No Idea' Where That Accent Came From

MTV News gets the inside scoop from BBC host Nick Grimshaw on the Halloween-themed video.

In case you missed it, Britney Spears got into the Halloween spirit a little early this year in a kitschy clip called "It's Britney Witch."

Earlier this week, she linked up with BBC1 Radio host Nick Grimshaw to put her own spin on Vincent Price's speech from Michael Jackson's legendary 1983 "Thriller" video — one that included party-store cobwebs, plastic blood-covered axes and witchy broomsticks.

And for those wondering how it all came together, MTV News got the inside scoop from Grimshaw, who explained how he got the femme fatale to flex her funny bone for him. "The idea, like all good things in radio, came from the title first. 'It's Britney Witch!' " he told MTV News via e-mail. "Then we had to figure out what that actually was.... obviously it would be Britney Spears riding a broom around our office. Obviously!"

He added, "The title 'It's Britney Witch' was thought up very early in the morning when my brain is weird."

While the concept was simple, it was also kind of weird. So, Grimshaw just wasn't sure the pop princess would be down to do it. "I thought it would be an idea that would get rejected by Team Britney but they loved it," he said, before recalling what it was like to explain to Spears just what exactly they'd be doing.

"I walked with her on the way to record it and she was like 'what EXACTLY are we doing?' and I said 'just riding brooms around and holding bloody axes'," he said. "And she gave a look as if to say 'WTF,' but she was wonderful at it! It was one of the most surreal days at work I've ever had. I never wanted it to end!"

While many of the set-ups are unforgettable (we've compiled some GIFs), Spears' slightly English accent while delivering those famous lines might be one of the most spooktacular moments in it. Grimshaw notes, however, he had nothing to do with it. "I have no idea where her accent came from," he said. "She had full creative control of the voices that came from her mouth."