It’s essentially a giant thumbs up in the centre of Trafalgar Square.

According the official London government website, Shrigley, a previous Turner Prize nominee, says the piece is based on his ‘ambition that this simple gesture will become a self-fulfilling prophecy; that things considered ‘bad’ such as the economy, the weather and society, will benefit from a change of consensus towards positivity.’

Shrigley, who made the headlines last year, when he designed the character, Kingsley, the mascot for Partick Thistle’s football season, said it was a ‘real privilege’ at the unveiling of the London project.

The Mayor of London, Sadiq Khan said: “What it represents is so important – optimism, positivity, the best of us. This sculpture is so important showing Londoners…tourists…that London is open.

“The changing artworks on Fourth Plinth continue to be a source of delight, discussion and debate and I am proud to be the mayor of a city that has such an energetic and vibrant cultural life,” he added.