(Cover) - EN Showbiz - James Blunt says his latest song is about a car crash relationship.

The British singer is currently on a world tour with his latest album Some Kind of Trouble. James has written a host of upbeat tunes for the record, but admits his new single If Time Is All I Have is rather depressing. James who split from model Sabina Vidal in December last year, after several months together - has refused to reveal who inspired the lyrics for the sad song, and even confessed to feeling anxious about performing it live.

My album Some Kind of Trouble is really happy but this is just the one very sad song. It is a very sad song and one of your viewers may even be the person it is about so I will be nervous performing it, he said as he appeared on British television show Lorraine. I suppose it is about a relationship that has been a bit of a car crash. But there is still great warmth and love after the event.

James also spoke about reports he will perform when Britains Prince William marries his fiance Kate Middleton later this month.

The star had claimed he had been asked to play the organ at Westminster Abbey in London on April 29, before later confessing he had been joking.

James has now revealed he had no idea his prank would attract so much attention around the world.

I had been asked a lot about the wedding and so I said I had been asked to play the church organ and I even changed my Wikipedia page to say classically trained church organist and 4,400 websites picked up on it, he laughed. But I am not playing at the wedding; I am playing in Denver, I think.

I expect at the royal wedding they will just play the traditional stuff! (C) Cover Media