Sir Tom Jones stunned customers at a London pub when he popped in to give a surprise performance.
The Delilah singer rocked up to The Wheelbarrow in Camden and sang to a crowd of just 100 people to celebrate Guinness' Arthur's Day.
Sir Tom also joined Wretch 32, VV Brown and Razorlight for a bigger gig at the capital's Senate House building.
The celebration - in Great Britain for the first time since the celebrations began in 2009 - took place in 55 countries to mark the anniversary of Arthur Guinness signing the 9,000 year lease to the Dublin brewery.
Wretch was back for his second Arthur's Day performance after performing in Ireland in 2011. After he came off stage he said: "Arthur's Day was epic! I hope all of you at the gig and all the fans watching on YouTube enjoyed watching."