It's no wonder industry icons like Naomi Watts, Jennifer Lopez, Victoria Beckham, and so many others become unofficial (but totally official) beauty experts. Groomed, coiffed, lacquered, and primped since a tender

young age, they've grown up alongside the best makeup artists, skin experts, and hairstylists in the industry. Thus, they're bound to accrue bountiful beauty knowledge, and many of them have even debuted their own lines, brands, collections, and collaborations, including one of our all-time favorites, Drew Barrymore.