Madonna is currently preparing a press tour to promote her upcoming album, "Confessions on a dancefloor".

The queen of pop was supposed to pose on the cover of Blender magazine's December issue. Apparently, the publishing bosses have now dropped Madonna in favor of Ashlee Simpson.

The Blender team have refused to comment, while Madonna's representative stated: "She's too busy healing from her (horse-riding) accident. I was talking to several publications, including Blender. Trust me, you'll see plenty of Madonna in the weeks to come."

However, another source said: "Madonna was fuming. She never wanted to do Blender in the first place; she wanted to do Rolling Stone. And then this put her over the edge."