Rio de Janeiro: Brazil's Jair Bolsonaro sent out a trumpet-playing, banana-throwing impersonator to his daily press doorstop in Brasilia on Wednesday, before joining him for a stand-up routine in one of the most surreal moments of his unorthodox presidency.

Journalists were expecting the far-right former army captain, who has vowed to kickstart Brazil's economy and end years of crime and corruption, to answer questions about new figures showing the country's GDP to be the worst in three years, when the impersonator appeared. The bizarre scene, was broadcast live on Bolsonaro Facebook page.

Comedian Marvio Lucio stands in front of members of the media while dressed as Brazilian President Jair Bolsonaro in Brasilia on Wednesday. Credit:Bloomberg

The impersonator, donning a sash with the yellow and green of Brazil often worn by the President and mimicking his trademark drawl, was named by local media as comedian Marvio Lucio dos Santos Lourenco. Reuters was unable to confirm his identity.

As the fake Bolsonaro greeted journalists and supporters gathered outside the President's residence, he struck up a tune on a trumpet and gave bananas to the crowd, offering some to the waiting media, an apparent reference to an obscene hand gesture known locally as "giving a banana" that Bolsonaro has used in recent weeks to dismiss journalists. It is equivalent of giving someone the finger. Bolsonaro's son, MP Eduardo Bolsonaro, has also been using the gesture in reference to media.