Chris Martin jokingly blamed the Olympics for making him forget the words at a recent concert in America.

Coldplay were performing in Boston when Martin took to the piano for the opening of their track 'Warning Sign'.

However, the singer fluffed his words and began to play random notes on the piano as the crowd cheered.

He then said: "I was thinking about the Olympics. I was distracted. I was not in the breakup frame of mind and I should have been. I'm going to get back into it. I'm going to stop thinking about pole vault, things like that, and I'm going to focus back in on the song. So is everybody else."

Martin continued: "It's a big deal, man. We've never had the Olympics in our lifetime so you can't blame a band for thinking about it every once in a while - 'God, the f**king Olympics are happening in London!'. What's more important is the best concert in the world is happening right here, right now, so we'd better carry on. F**k the Olympics. Let's have a f**king great time in Boston."

Chris Martin, who will perform with Coldplay at the closing ceremony of the 2012 Paralympic games, then played the opening bars of the song again, before stopping and telling the crowd: "Please don't tweet that I said, 'F**k the Olympics'. I didn't mean that. Please don't turn it into a news story, whatever you do, because we're going to play the end of it. Don't tweet that either! S**t, I'm in a big mess now."