David Guetta has claimed that Madonna refused to work with him after he revealed his star sign to the singer.The DJ and producer told the McFly et Carlito YouTube channel that Madonna had been keen to work with him after he won a Grammy in 2011 for his remix of her song ‘Revolver’.Reflecting on a subsequent meeting between the pair, he said: “She tells me that she loves this remix and she suggests that I produce her next album. I arrive for lunch.