Perri is a British Olympian who represented the UK in Track and Field. Her grandparents are from Jamaica and Grenada but both her parents were born in the UK. Perri was born in East London.
Perri is the 2013 European Indoor Champion in the 400 metres and won a 2012 World Indoor Championship gold medal in the 4 x 400 metres relay. She has also won silver and bronze medals in the 4 × 400 m relay at the World Championships.
Perri also participated in the tenth series of the ITV show Dancing on Ice.
Perri studied sports science at Brunel University.