2. Madonna
The queen of pop expects nothing but queen treatment from everyone. She requires a whole new board for the toilet bowl for each new show. Once she even banned air conditioning in every room she had to pass through, as well as at the performance site. Her explanation was that it was a necessary measure to protect her vocal cords. During her performance in London in her 2006 tour, the fans started fainting when the temperature went up to 32 degrees Celsius, but even after that, she didn’t change her strange no-AC rule.