“I sing American Boy by Estelle and Kanye West,” Sophie reveals about her audition, “but I’m not allowed to say how the judges respond - you’ll have to watch Saturday’s show!”
But perhaps dropping a hint about how she got on, 17-year-old Sophie said she was overwhelmed by one judge in particular.
She admits: “Just to see [Jessie] was incredible. She’s an amazing role model.”
Speaking to the News Letter, Sophie continued: “This is definitely the most nerve-wracking thing I’ve ever done because you go out there and you’re waiting to see if the judges will like you or not - you aren’t getting any immediate feedback from the audience.
“It’s hard singing when you don’t know if people are liking it or hating it.
“But I love performing and this is a really exciting opportunity.”
See what happens in Sophie's audition tomorrow at 7PM on BBC One!