The Voice's gives impromptu performance at St George's Hall in Liverpool in Liverpool -Credit:Liverpool Council

Global superstar and The Voice judge turned up at St George's Hall on Friday.

The music legend, 49, was captured giving an impromptu performance on the Organ Willis inside the Grade I listed building. His appearance comes at campaigners are trying to restore the organ, as well as address essential maintenance at St George's Hall.

Liverpool Council shared a video of's performance on its social media platforms.

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The Black Eyed Peas frontman is in the city to film episodes of The Voice, which has been made possible by the Liverpool Film Office.

St George’s Hall’s Willis Organ has an impressive 7,737 pipes, making it the third largest of its kind in the country. It was built back in 1855.

Campaigners said: "However, instruments of this calibre require meticulous attention and care, and the Willis Organ is no exception. Without restoration, Liverpool risks losing a significant part of its historical identity and cultural legacy.

"The last restoration works on the organ took place over fifty years ago and now we urgently need your support."

You can find out more about the campaign here

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