If the UK's Daily Mirror is to be believed, Madonna's MDNA tour rider includes one particularly apt request from each venue she visits: Do not enter her dressing room until after it has been scrubbed clean of her DNA.
"We cannot even look at the dressing room, after it is ready, or even open the door," said Portuguese concert promoter Álvaro Ramos. "We can only enter after her sterilisation team has left the room. There will not be any of Madonna's DNA, any hair, or anything."
According to Álvaro, Madge also insists that each dressing room be modified by her crew with "fake ceilings and fake walls" to ensure that "no one has hidden a camera somewhere."