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Lily Allen faced a backlash online after expressing excitement about Britain leaving the EU.

In a series of tweets posted after Brits backed Brexit in the referendum, the Smile singer said she thought the vote could trigger a shift in the "political climate".

On Friday she said she had been left in tears over the result, but in an apparent about-turn she posted today: “Never thought I’d say this, possibly because project fear worked on me.

“I’m now quite excited about #Brexit and shift on political climate.

Leave wins EU referendum - in pictures 23 show all Leave wins EU referendum - in pictures 1/23 David Cameron announces his resignation outside Number 10 Downing Street Stefan Wermuth/Reuters 2/23 David and Samantha Cameron outside Downing Street as the PM announces his decision to stand down Stefan Wermuth/Reuters 3/23 Boris Johnson leaves home following the stunning EU referendum result Lucy Young 4/23 A triumphant Nigel Farage near the Houses of Parliament Glyn Kirk/AFP/Getty Images 5/23 Jeremy Corbyn MP, leader of the Labour Party, is followed by journalists as he walks towards the Houses of Parliament Rob Stothard/Getty Images 6/23 London Mayor Sadiq Khan speaks to the media after Britain voted for Brexit Matt Writle 7/23 Leave supporters cheer results at a Leave.eu party after polling stations closed in the Referendum on the European Union in London Toby Melville/Reuters 8/23 Supporters of the Stronger In campaign react after hearing results in the EU referendum at London's Royal Festival Hall Rob Stothard/PA 9/23 Vote LEAVE supporter Christine Forrester celebrates with others outside Vote Leave HQ Chris J Ratcliffe/Getty Images 10/23 Supporters of the Stronger In campaign look dejected as results come in Rob Stothard/AFP/Getty Images 11/23 The Houses of Parliament as dawn breaks on London after the vote Rob Stothard/Getty Images 12/23 Stronger in campaigners look dejected after the result 13/23 Leave supporters celebrate opposite the Houses of Parliament in London Anthony Devlin/PA 14/23 Labour Party Leader Jeremy Corbyn leaves his home this morning Rob Stothard/Getty Images 15/23 A man reacts to a vote count results screen at an 'Leave.EU Referendum Party' in London 16/23 Supporters of the Stronger In campaign react after hearing results in the EU referendum at the Royal Festival Hall Rob Stothard/PA 17/23 UKIP Leader Nigel Farage at the Leave.EU party in London as he claimed victory Stefan Rousseau/PA 18/23 A London taxi driver holds a Union flag, as he celebrates following the result of the EU referendum Toby Melville 19/23 Traders react to the fast moving Euro results at ETX Capital in the City of London this morning Chris Gorman/Evening Standard 20/23 People gathered in The Churchill Tavern, a British themed bar, react as the BBC predicts Briatin will leave the European Union, in the Manhattan borough of New York Andrew Kelly/Reuters 21/23 Traders monitor computer screens with the day's exchange rate at a foreign exchange brokerage at a securities firm in Tokyo Eugene Hoshiko/AP 22/23 Conservative MP Nigel Evans (left) and UKIP's Paul Nuttall, members of the Vote Leave campaign, celebrate at Manchester Town Hall where the national result in the UK referendum will be declared later Peter Byrne/PA 23/23 Traders react to the fast moving Euro results at ETX Capital in the City of London this morning Chris Gorman/Evening Standard 1/23 David Cameron announces his resignation outside Number 10 Downing Street Stefan Wermuth/Reuters 2/23 David and Samantha Cameron outside Downing Street as the PM announces his decision to stand down Stefan Wermuth/Reuters 3/23 Boris Johnson leaves home following the stunning EU referendum result Lucy Young 4/23 A triumphant Nigel Farage near the Houses of Parliament Glyn Kirk/AFP/Getty Images 5/23 Jeremy Corbyn MP, leader of the Labour Party, is followed by journalists as he walks towards the Houses of Parliament Rob Stothard/Getty Images 6/23 London Mayor Sadiq Khan speaks to the media after Britain voted for Brexit Matt Writle 7/23 Leave supporters cheer results at a Leave.eu party after polling stations closed in the Referendum on the European Union in London Toby Melville/Reuters 8/23 Supporters of the Stronger In campaign react after hearing results in the EU referendum at London's Royal Festival Hall Rob Stothard/PA 9/23 Vote LEAVE supporter Christine Forrester celebrates with others outside Vote Leave HQ Chris J Ratcliffe/Getty Images 10/23 Supporters of the Stronger In campaign look dejected as results come in Rob Stothard/AFP/Getty Images 11/23 The Houses of Parliament as dawn breaks on London after the vote Rob Stothard/Getty Images 12/23 Stronger in campaigners look dejected after the result 13/23 Leave supporters celebrate opposite the Houses of Parliament in London Anthony Devlin/PA 14/23 Labour Party Leader Jeremy Corbyn leaves his home this morning Rob Stothard/Getty Images 15/23 A man reacts to a vote count results screen at an 'Leave.EU Referendum Party' in London 16/23 Supporters of the Stronger In campaign react after hearing results in the EU referendum at the Royal Festival Hall Rob Stothard/PA 17/23 UKIP Leader Nigel Farage at the Leave.EU party in London as he claimed victory Stefan Rousseau/PA 18/23 A London taxi driver holds a Union flag, as he celebrates following the result of the EU referendum Toby Melville 19/23 Traders react to the fast moving Euro results at ETX Capital in the City of London this morning Chris Gorman/Evening Standard 20/23 People gathered in The Churchill Tavern, a British themed bar, react as the BBC predicts Briatin will leave the European Union, in the Manhattan borough of New York Andrew Kelly/Reuters 21/23 Traders monitor computer screens with the day's exchange rate at a foreign exchange brokerage at a securities firm in Tokyo Eugene Hoshiko/AP 22/23 Conservative MP Nigel Evans (left) and UKIP's Paul Nuttall, members of the Vote Leave campaign, celebrate at Manchester Town Hall where the national result in the UK referendum will be declared later Peter Byrne/PA 23/23 Traders react to the fast moving Euro results at ETX Capital in the City of London this morning Chris Gorman/Evening Standard

“I’m not saying I wouldn’t be happy if we’d remained, not at all.

“But if in time it levels the playing field and helps to narrow the gap between the rich and poor, that can be no bad thing.

“The people have spoken, some for good reason. I stand by them.”

A stream of negative comments were flung at the star, with some accusing her of using the Brexit vote to seek attention.

Allen was scheduled to perform a DJ set at Glastonbury this weekend but was forced to withdraw after suffering a knee injury.

The outspoken singer has previously used Twitter to launch a foul-mouthed tirade Jeremy Hunt and label Donald Trump a moron.