The exhibition of Katharina Fritsch's sculpture in Trafalgar Square has only just been rubber-stamped by planning bosses in Westminster - but the artist originally won the commission back in January 2011.
Here is how we reported on it at the time.
Artist Katharina Fritsch describes her inspiration for the cockerel sculpture in this YouTube video posted on the Fourth Plinth website.
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Planning chiefs have given approval for a giant blue cockerel to be placed on the fourth plinth in Trafalgar Square - meaning an iconic French symbol will be sitting under the nose of Lord Nelson.
The 4.7m high statue, designed by German artist Katharina Fritsch, and backed by the Greater London Authority, was given the go-ahead by Westminster Council last night.
The formal submission to the planning committee said that Fritch was "mischievously sitting the national symbol of France within a square that celebrates an historical victory over the French", and that the bird was also "a species interloper" among the square's flocks of pidgeons.
The cockerel will be displayed in the square from the 20th of July this year, replacing the rocking horse currently on show.
Mayor of London Boris Johnson says the fourth plinth has become an important part of London's art scene:
It stood empty for more than 150 years - an empty plinth whose intended artwork was never completed.
But over the last 14 years, the fourth plinth in Trafalgar Square has hosted some of the world's most feted contemporary art.
Now its role in the arts world is being formally celebrated, in a special exhibition at the Institute of Contemporary Arts.