Cynthia Germanotta has joined her daughter, pop star Lady Gaga, on her tour to keep an eye on her wild lifestyle.
Germanotta, 56, will stay on the tour bus to make sure her daughter stays healthy.
'She may be one of the biggest and strangest pop stars in the world, but her relationship with her parents is very traditional,' the sun.co.uk quoted a friend of Gaga as saying.
'She is from a typical loving Italian-American background and her family have normal parental concerns. Her mum thinks she drinks too much and doesn't eat enough. She has gone along to keep an eye on her boozing and feed her up,' she added.
Germanotta's intervention comes after Gaga claimed she was on a 'drunk diet'.