Rihanna, Jennifer Lopez and Zoe Saldana are famous for their gloriously glowy, eternally luminous skin -- and ladies, we're here to tell you that it's no accident. All three superstars are huge fans of Nars Orgasm Illuminator ($29)! This sheer highlighter instantly adds radiance wherever you need it, whether it's your under-eye area or your decollete. We love blending this luminous lotion along cheekbones and browbones to wake up tired skin; and before a big night out, we'll mix a drop in with our foundation for a sexy, candlelit effect. The best part? Nars Orgasm Illuminator ($29) works brilliantly on all complexions, from the palest porcelain to the deepest mocha. Genius!