Producer and musician Mark Ronson said yesterday that he was “confused” by an Amy Winehouse internet rant in which she accused him of cashing in on her success.

The singer posted a message on her Twitter account in which she wrote “Ronson you’re dead to me” and suggested he had tried to take “half the credit” for her Back To Black album.

But yesterday he said that he had always been open and upfront about the effect working with her has had on his career. In an interview with BBC Breakfast, he said he had been “surprised” by her comments.

Ms Winehouse wrote: “Ronson you’re dead to me; one album I write and you take half the credit – make a career out of it? Don’t think so.”

It is thought Ms Winehouse’s comments may have been provoked by Mr Ronson’s appearance on Later With Jools Holland in which he suggested she had come along with only basic acoustic songs and he would “dream up the rhythm arrangement and the track around it”.

Asked by presenter Sian Williams what had prompted the comments, Mr Ronson said: “I’m not really sure. I was quite surprised because I’ve always been really candid about saying that Amy is the reason I am on the map.

“If it wasn’t for the success of Back To Black, no one would have cared too much about Version (Ronson’s hit album), so I’m kind of a little bit confused.

“But Amy is a friend and I think that’s something I should discuss with her personally.”

Ms Winehouse then seemed to have had a change of heart with another message on her Twitter feed: “Ronson I love you; that make it better? You know I love you – it’s a Jew thingz.”