Macaulay Culkin took the stage at an indie concert on a boat in Bristol, UK, singing Beach Boys’ song Kokomo.

The former child star was earlier this week belting out Kokomo when he took to the stage as Adam Green’s special guest much to the surprise of the gig goers.

Macaulay Culkin, 32,, who has looked far removed from his angelic child star self for some time now, seemed right at home in front of the 200-strong crowd.

Wearing his blond hair off his face and a pair of sunglasses on his face, it’s no surprise that many failed to believe it was him.

According to The Mirror, Macaulay Culkin, who was dressed in a plaid shirt, shouted: “I’ve come all the way from America.”

Macaulay Culkin took the stage at an indie concert on a boat in Bristol singing Beach Boys’ song Kokomo

A spokesperson for the venue Thekla, where the remarkable incident happened, told the paper: “He just turned up as a surprise guest.

“Adam said we’d recognize him from Home Alone, but still nobody believed it.

“When he got on stage it was surreal at first, then people started realizing it was him.”

It isn’t the first time Macaulay Culkin has joined The Moldy Peaches frontman on stage and the pair even starred in The Wrong Ferarri together.

On this occasion Macaulay Culkin, who is currently in the UK, stepped in when Adam Green’s singing partner Binki Shapiro fell ill.

Just the day after Macaulay Culkin was spotted wandering around London, mere streets away from where his ex Mila Kunis is currently staying.

[youtube YEXyTMdYzOw]