Internationally renowned rock band U2 are not known for their low-key gigs and, despite attempts to go under the radar, a quick bit of busking in a New York subway soon gathered quite a crowd.

U2U2 performed quite a different gig in a New York subway station

Doing a bit for chat show host Jimmy Fallon and an appearance on The Tonight Show, the famous quartet gave an acoustic rendition of Angels of Harlem in Grand Central Station.

If Bono and his pals had planned on ambiguity, their thinly-veiled disguises were not really good enough and soon a sizeable group of fans had gathered around the impromptu performance.

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An Instagram video posted by u2italianfans showed Bono wearing a blue cowboy hat as the band played their 1988 hit.

U2 and Fallon have been spotted in other spoofing scenarios across New York City over the last few months - one of which saw Fallon and Bono riding bikes across Central Park.

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It is thought that this was preparation for a comedy skit referring to Bono’s own bicycle crash which resulted in injuries that forced the band to cancel a number of engagements.

The boys are due to appear on The Tonight Show on Friday night and will be Fallon’s only guests of the evening.