PEOPLE Magazine 40th Anniversary

Look Who's Turning 40

From Leonardo DiCaprio and Victoria Beckham to Hello Kitty and Happy Days, see who's celebrating the milestone with PEOPLE


After turning 40 on March 5, Mendes took on another milestone: Motherhood. In September the actress welcomed her first child, a daughter, with longtime beau Ryan Gosling. The new mom's gorgeous-at-any-age trick? A chic coif. "I think a great beauty tip for me, that I actually learned from my mother is, she always believes that if your hair is set and your hair is done, you can get away with having no makeup or a mediocre outfit," she told ABC News.