An unsigned singer from Devon has been given her big break in the new “Harry Potter” spinoff, “Fantastic Beasts and Where to Find Them.”

    Emmi, who has no management or record deal, was hand-picked to sing the film’s only song, called “Blind Pig.”

    She recorded the vocals in her childhood bedroom after being contacted out of the blue by director David Yates.

    However, she was kept in the dark about his identity, and the song’s destiny, for almost a year.

    “It feels too good to be true,” says the singer, who saw her song on the big screen for the first time at the film’s premiere in London last Tuesday night.

    “I feel like it’s a bit of a joke. I don’t feel like it’s real.”

    The 29-year-old was born in Devon but raised in Perth, Australia. She now lives in London, where she has been making music full-time for seven years.

    A former child actress, who had a small role in “Home and Away,” she has spent much of that time writing for other artists, but decided to make music under her own name in 2013.

    Her second single, “Sleep on It,” attracted the attention of Taylor Swift, who tweeted it as part of her playlist: “New Songs That Will Make Your Life More Awesome.”

    Although that raised her profile, she decided not to capitalize on the hype. “I had a couple of deals on the table but I felt I wanted to do things in a more independent, organic way,” she says. “I wanted to make some mistakes on my own, and create something that was wholly me before I got a whole team on board.”

    When Yates got in touch in summer last year, she was back at her parents’ house for a holiday.

    “I have two weeks with my family ever year and I got this email from someone I didn’t know saying, ‘Do you mind singing this? Here are some lyrics, give it a try,’” she recalls.

    When the singer looked at the lyrics, she found references to magical creatures like the Hippogriff and Billywig. “I started thinking, this sounds like something from ‘Harry Potter,’ so I Googled the words and confirmed that for myself.”

    Having completed a rough vocal in her bedroom, Emmi started receiving requests for more and more versions of the song: “Can you get more whispery? Can you do it more sexy? Can you do it more innocently?

    “At the time I didn’t know it was David Yates directing me. If I had, I might have been a little more nervous in my bedroom,” she laughs.

    However, having finally completed the song, everything went quiet. “It wasn’t until April of this year that I got a call saying, ‘We’ll be using your voice in a film, is that cool?’” she says.

    The singer soon found herself on a movie set covered in green lycra, having her performance motion-captured so she could appear in the final film as a computer-animated character.

    Even at this stage, she was not told that her song — a smoky jazz number — had been written by J.K. Rowling herself. That information only came to light when the film’s IMDB page was updated a few weeks ago.

    (SD-Agencies)