Madonna may have to do some more yoga, cardio, or put in some extra hours down at Muscle Beach in Venice, CA after she digs into some humble pie. Recently Madonna had a good laugh when she found out her rival Mariah Carey was unable to sell out her stadium tour. Now it appears that Madge is having the same problem with the UK leg of her own world tour. The reason? High ticket prices have been blamed but it could be that the Brits are just be sick of her mock-ney accent.