|Amy Winehouse and Pete Doherty|
A friend of the Babyshambles singer said: "He is utterly convinced that he has seen her ghost. A lot of people will think his visions are probably drug-induced by he claims he is clean."
However, Pete – who previously dated supermodel Kate Moss – is so worried about the alleged apparition he is refusing to come back from his French break.
During a recent London concert, Pete revealed he had written a song for Amy but he never got a chance to record it with her.
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Introducing the song, the former Libertines front man said: "Amy Winehouse asked me a while ago if I had written any new songs. I played her something, and when I had finished, she looked at me and said, 'Is that it? Is that all you've got?' "
The song he played was a slow, acoustic led number, and although the lyrics were hard to make out they include the line "oh Amy, she won't be around tonight".