The 31-year-old mum-of-three has been steadfastly supportive of remaining in the European Union and shared a link to Deutsche Bank's prediction that the pound would continue to drop ahead of Brexit.
The report detailing German bank's outlook was published on Russian website RT and suggested the UK pound will continue to fall adding "it's not going to stabalise any time soon" (sic).
The announcement, which Ms Allen reposted, came from Germany's largest lender, almost three weeks after the bank was fined (£506m) $630m over Russian money laundering claims.
Lily Allen is apparently happy that the pound has fallen
The English in particular have put you in danger
Deutsche Bank is getting set to shed thousands of jobs worldwide after being caught up in countless probes that have cost it billions in fines after it was found guilty of toxic securities abuses, energy market manipulation, and investor protection violations.
However, that did not stop Ms Allen from repeatedly using a party hat emoji to illustrate her emotions regarding its latest pound prediction despite claims the devaluation is ahead of a global curve.
Ms Allen tweeted the link along with the spelling mistake to 5.91m people
Ms Allen was mocked online after retweeting the report with users of the social media site scrambling to criticise her apparent unpatriotic views.
One Twitter user said: “Not falling as fast as your dismal record sales though.”
While another said: “Thanks for that unbiased opinion Lily, I will really take it on board.”
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Lily Allen performs alongside a person with a dog's head
Ms Allen, who is reported to have made earnings of around £16m during her singing career, sparked anger after she visited the Calais migrant camp in France last year and claimed the "English" were responsible for the war in Afghanistan.
The Smile singer appeared to blame the UK government as opposed to the Taliban, which emerged in the early 1990s in northern Pakistan following the withdrawal of Soviet troops from Afghanistan.
Lily Allen has offered a home to refugees pictured here on a day out at the races
She said: "It just seems that at three different intervals in this young boy’s life, the English in particular have put you in danger.
"We’ve bombed your country, put you in the hands of the Taliban and now put you in danger of risking your life to get into our country.
"I apologise on behalf of my country.
"I’m sorry for what we have put you through."
After her visit to the illegal French camp, the singer then declared she would provide a home to refugees following the fall out from the crisis, but has yet to confirm whether she has provided the pledged accommodation.
At the time she said: "I am not going to do it illegally but yeah if children are being displaced, of course there is room for people in my house, I am going to take them in".
The Deutsche Bank report is at odds with previous analysis.
When the Taliban took Afghanistan over by force they made women wear the burka and banned music
In December, Silicon Valley based firm Quantiacs, which connects systematic trading strategies with capital from institutional investors, told Express.co.uk that the “UK’s economic troubles are greatly exaggerated.”
The group added Black Wednesday and the 2008 credit crunch hit the pound harder in real terms.
Our Brave Boys in Afghanistan
Mon, July 27, 2009
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Welsh Guards, and 2 Mercian B Command, in Gereshk
CEO Martin Frohler added: "Many central banks around the globe are trying to soften – or devalue – their currencies.
"One might as well argue that the UK just did so through a simple vote, what central banks around the world try to accomplish so desperately: gaining competitiveness.
“If the markets are the best indicator for the shape of the economy, the rumours about the UK’s economic troubles are greatly exaggerated."
Ms Allen refused to comment on her latest twitter episode.