Amy Winehouse has cut all ties with her one-time pal and collaborator Mark Ronson, accusing the superproducer of taking credit for her fame and insisting he is now "dead" to her.
Ronson helped Winehouse achieve a worldwide smash with her Grammy-winning 2006 release Back to Black, and the pop star returned the favour the following year (07) by singing Valerie for the DJ's covers compilation Version.
The pair reteamed earlier this year (10) to record a song for a new Quincy Jones tribute record, but their relationship has since soured - and Winehouse has blasted Ronson for using her solo success as a launchpad for his own blossoming career.
Taking to her Twitter.com page, she writes, "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 BRUV."
It is thought Winehouse's comments stem from an interview Ronson gave on Friday (17Sep10), in which he told musician-turned-TV presenter Jools Holland he had "created the tracks" on Back To Black from the singer's demos.