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In a major blow to Jeremy Corbyn, grime artist Stormzy will not be performing at Labour's Glastonbury-style festival this summer.

The performer, who is a fan of the Labour leader and has met him on a number of occasions, had prior commitments which stopped him from headlining the new festival.

Labour Live has been billed as a socialist festival with talks and music, but the Party has reportedly struggled to sell tickets which have been on sale for two months now.

(Image: AFP) (Image: REX/Shutterstock)

So far only 1,800 of 20,000 tickets, which cost £35 and £30 to the unemployed are reported to have been sold.

Despite a range of high profile musical supporters, Labour has struggled to book any big names.

Party bosses have also been contacting MPs asking them to tweet about the event to drum up support.

Stormzy, 24, struck up an unlikely friendship with the 68-year-old Labour leader when they met up to discuss the issues facing the young people who make up the singer's fan base.

(Image: PA)

It was part of the strange phenomenon of grime for Corbyn campaign which also saw JME and Run the Jewels showing support for the politician.

Stormzy also showed his political credentials when he attacked Theresa May as a “criminal” from the stage in his performance at the Brit awards in February.

In a freestyle rap, he said: “Theresa May where’s the money for Grenfell? What you thought we just forgot about Grenfell?

(Image: Daily Mirror)

“You criminals, and you’ve got the cheek to call us savages, you should do some jail time, you should pay some damages, you should burn your house down and see if you can manage this.”

But he didn't just use his platform to call out the PM but he helped to generate support for a petition calling for the panel overseeing the public inquiry which starts on Monday.

This ensured it passed the 100,000-signature mark, ensuring a debate in parliament and pressurising Theresa May to act - which she did.

(Image: Getty Images Europe)

Stormzy tweeted when the target was reached: “Job done”.

"Stormzy wanted to do it but couldn't. He felt bad but was already committed elsewhere. That would have saved it. Still, we should have foreseen this," a Labour source told the Sunday Times.

"Mass movements have to be grassroots and structureless. You need a groundswell that's the beauty of Momentum. It's local, it's random and it has this unpredictable energy.

"You can't demand that thousands of people turn up and listen to people they read online every day anyway."

(Image: Getty Images Europe)

The Magic Numbers, Rae Morris and the Makers are set to headline the festival in Tottenham, North London in June.

John McDonnell and Jeremy will make speeches.