Madonna fans have been sent into a spin over rumours that she could be returning to the stage for a surprise performance at the second weekend of Coachella. The Queen of pop is back to dominate the charts once again , and will be dropping Confessions II - her first album in seven years - on July 3. If that wasn’t excitement enough, there has been intense speculation that the 67-year-old will be joining Sabrina Carpenter during her headline set at the US festival on Friday. Coachella-goers were