That smile looks good on you

Good oral hygiene means you'll be smiling all the time.

When Scottish spinster Susan Boyle auditioned for Britain’s Got Talent in 2008, judges expected very little from her. She turned up in a dowdy gold dress, pumps and with unkempt hair, and the audience sniggered at the unemployed woman’s very presence on the reality singing competition. But there was pin drop silence when she belted out Les Misérables’ I Dreamed A Dream. Everyone, including the judges, was in awe of her angelic voice.

Since then, Boyle has made six albums and graced the covers of magazines, including Harpers Bazaar. She has overhauled her image – no more untamed caterpillar eyebrows, greying curls and frumpy dresses.