U2 has pulled out of it's appearance on NBC's The Tonight Show following Bono's incident. IBTimes UK

U2 have been forced to pull out of their forthcoming appearance on The Tonight Show after frontman Bono was injured in bicycle accident.

The 54-year-old singer is preparing to undergo surgery on his arm following a fall in New York's Central Park.

In a statement to fans, bandmates Edge, Adam and Larry revealed they were postponing their residency as they were "One man down".

"It looks like we will have to do our Tonight Show residency another time -- we're one man down," a message on the official U2 read. "Bono has injured his arm in a cycling spill in Central Park and requires some surgery to repair it."

Although the extent of Bono's injuries are not yet known, the group vow that they would return to the show soon.

"We're sure he'll make a full recovery soon, so we'll be back!" the statement said. "Much thanks to Jimmy Fallon and everyone at the show for their understanding."

The Beautiful Day hit maker's accident comes hours after he reunited with some of music's biggest names in a recording studio in West London to record a remake of Sir Bob Geldof's Band Aid charity single.

Band Aid 30, which comes 30 years after the original, is raising money for the fight against Ebola.

"We've been trying to make this event a thing of the past. We want to make Band Aid history," Geldof told BBC News. "If every country had the values of Great Britain and kept the promises they'd made at these big G8 meetings, we wouldn't have to be standing here."