The ban is set to come into force at midnight unless the legal bid for a temporary block is successful.

Bertrice Pompe, who was born on the Chagos Islands, said she was not giving up after the decision to lift an injunction.

But industry body says cancelling festivals would be a ‘devastating blow’ that would leave thousands of ticket holders ‘in limbo’

Brockwell Park in south London is due to host several festivals, including pop event Mighty Hoopla, between May and June.

Justices at the UK’s highest court considered a case brought by campaigners For Women Scotland.