She is from Chafford Hundred , Essex , and attended St Thomas ' RC Primary School in Grays , Essex .
Louisa Johnson ( born 11 January 1998 ) was a 17 - year - old student at the time of her audition .
Louisa Johnson is from Chafford Hundred , Essex , and attended St Thomas ' RC Primary School in Grays , Essex .
Louisa Johnson ( born 11 January 1998 ) was a 17 - year - old student at the time of her audition .