Amy Winehouse and her team are believed to be "furious" with Mark Ronson after he claimed that she is not in a fit state to record music.
The producer said that his plans to record a Bond theme with Winehouse had been shelved for now because of the troubled singer's ongoing health problems. However, a spokesperson for the singer hit back at his comments, claiming that artistic differences had resulted in the project being scrapped.
A source close to Winehouse told The Mirror, "Amy and the rest of the team are furious by what Ronson has said."
"Amy wasn't happy with the finished product and let her feelings known. The whole things smacks of sour grapes. Amy is more than capable of working at the moment despite a turbulent few weeks. In fact, throwing herself into her music is very much an escape for her at the moment."