X Factor background music

[musicjan]

Does anyone know what the piece of backing music is that was played on tonight's episode during Alexandra's audition story. The black girl who auditioned 3 years ago and has returned to try again It is almost like a modern version of a piano classic and I think it has been used before on other shows. Someone else posed this question and the reply was try Sigur Ros - Hoppipolla from the Album Takk but i did and it wasn't!