Sir Tom Jones wowed drinkers at a London pub when he stepped up to give a surprise performance.
A hundred punters at the Wheelbarrow in Camden were treated to the Welsh star's showcase in celebration of Arthur Guinness Day.
The event is a celebration of the day Guinness owner Arthur signed a 9,000 year lease for the production of the beer in an Irish brewery.
This year's celebrations are the first to have ever taken place in London.
The Voice UK judge also joined Wretch 32, VV Brown and Razorlight for a bigger performance at the capital's Senate House building.
This is rapper Wretch 32's second performance for Arthur's Day, after he took to the stage in Ireland in 2011.
He said of this year's celebrations: "Arthur's Day was epic! I hope all of you at the gig and all the fans watching on YouTube enjoyed watching."
Image: © Getty
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