Knock knock...

Who's there? Orange. Orange who? Orange you in the hottest color for May! You can't help but find the color everywhere, in any number of variations of the shade, from peaches to electric neons. Orange is one of those colors that people love, when its worn by someone else. But it truly works on virtually everyone, giving any skin tone a sunkissed glow and enhancing eye color. If you're still in doubt, try the most universally flattering shade - a softer coral tone with a pinkish base, like Mary Kate on the bottom left. And here are a few other examples of how celebs are wearing this season's hottest shades: