Madonna has hired two foreign nannies - because she's desperate for her children to grow up bilingual.The pop diva allegedly insists the French child minders talk to nine-year-old Lourdes and Rocco, five, in their native tongue to help the tots learn the language. Earlier this year, it was revealed the singer has banned the youngsters from watching TV and eating junk food. The star admits she's a tough mum and says her children live by strict rules. She told Harpers and Queen magazine: "My kids don't watch TV. We have televisions but they're not hooked up to anything but movies. TV is trash. I was raised without it We don't have magazines or newspapers in the house either" She added: "My daughter has a problem picking things up in her room So if you leave your clothes on the floor, we put them in a bin bag She has to earn them back by being tidy"Madonna, 47, also revealed she and husband Guy Ritchie have a "good cop, bad cop" system. She said: "I'm a disciplinarian, Guy's the spoiler When daddy gets home, they're going to get chocolate I'm more practical - I worry about their teeth and make sure they're getting their schoolwork done I'm very scheduled, I make lists"