Mariah Carey On Purple Food Diet

Wacky diva Mariah Carey is reportedly on a bizarre ?purple-food only? diet to stop her getting wrinkles.

The leggy singer is taking purple meals ? consisting of ingredients such as grapes and beetroot ? three days a week after hearing the food is high in vitamins and anti-oxidants.

A source tells The Sun. ?It sounds off-the-wall but it?s a huge injection of healthy food in on ego. Purple products are nature?s best weapons in the battle against ageing. There?s a saying that, ?A plum a day keeps a facelift away.??

Is there?