From the secret to the perfect flush to a new way to do nude nails.
See how Jenny from the Block turned into a worldwide beauty icon.
Remember when Gwyneth was brunette? Or when she and Brad had the same haircut? See her best (and worst!) looks through the years.
We chart the actress' rise from teen TV star to leading lady, with all her best (and worst) looks in between.
See her metamorphosis from fresh-faced teen model to megastar.