Taming children is a walk in the park for TV’s Supernanny Jo Frost. She became a household name after going into troublesome homes both in the UK and the US to help families pacify their unruly offspring.Thanks to her expertise, Jo has met a host of stars, and is said to have helped celebs including Jamie Oliver, Hugh Jackman and Simon Cowell, with Britney Spears even having her on speed dial – not that Jo would ever admit this.To her it’s just another family in need of her help.