Performers at next year’s Wireless Festival will be told not to swear or wear revealing outfits, a new council diktat demands.

The music event, held in north London’s Finsbury Park, attracts big name stars like Stormzy and Drake, but now local authority officials have issued strict guidelines following a licensing battle.

Fifty thousand people attended this year’s event over three days in July.

Haringey Council said new conditions on Wireless 2018 reflect improvements local residents “want to see”, whilst retaining the “world-class” event in the borough.

According to the London Evening Standard, part of the licensing conditions read: “The licensee shall reasonably request that performers do not sing or play any vulgar, obscene or banned songs; or carry out indecent acts; or make any vulgar gestures, actions or remarks during the performance; or at any point whilst using an amplification device, including the use of expletives.

“He shall also ensure that the attire of the performers do not offend the general public, for example attire which exposes the groin, private parts, buttock or female breast(s).”

The festival has been held in the north London borough since 2014 and has been beset by complaints from residents regarding noise, pollution, and anti-social behaviour.

A residents’ group launched a High Court challenge against Haringey in the hope of rescinding the event’s performance licence.

While the residents lost the challenge, a subsequent two-day licensing review confirmed new conditions for the festival’s organisers. 

As well as the ban on vulgarity, the festival will be required to close 30 minutes earlier than previously at 9.30pm.

Haringey’s environment leader, Cllr Kirsten Hearn, said: “Wireless Festival is a world-class urban event that helps to fund the park the whole year round and makes a major cultural contribution to Haringey.

“We’re a diverse borough and many of our residents, as well as people from across London, attend and enjoy the festival. It is a celebration of some of the world’s biggest music acts.

“Residents in Haringey and our neighbouring boroughs – as well as Islington and Hackney councils – have been clear about the improvements they want to see, and I want them to know that the council has heard their concerns.

“We will work to address these with residents and partners at Finsbury Park.”