Described as a stunningly talented musician, Emily maintains her ginger hair is her trademark.
"Everybody knows me as that 'young ginger singer'. For me it is a confidence thing. If I had to dye my hair brown, I would lose this," she said.
Her parents, Julie and Andy Reay, went to the school to discuss the matter with sixth-form head teacher Andrew Winter.
They claim they were told that Emily's hair colour needed to be changed or she would not be allowed to continue her education.
"I had to dye my hair to a more natural colour, or tone it down considerably," Emily said.
"I offered to pin it up, or wear a beanie hat, but I was told 'no' to both." "They do not realise what her hair means to her," said her mother.
"The irony is she is playing Scaramouche in the school's adaptation of We Will Rock You, which is about society suppressing people's creativity and self-expression.
"The school's uniform policy states no unnatural hair colours, like blue or green. Is ginger not a natural hair colour?"
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