25 Star-Tested Beauty Tips & Tricks

We got the inside scoop on Taylor Swift's stunning cat-eye, Jessica Simpson's gorgeous updo and more celeb hair and makeup looks. Check out their top get-gorgeous secrets!

  • NAILING IT photo | Katy Perry

Credit: INF

Updated: Tuesday Dec 13, 2011 | 06:00 AM EST By: Alex Apatoff & Zoë Ruderman

NAILING IT

Keeping nails as complicated as Katy Perry's is no easy feat – and Aija Vilemsonne, creative director of nail-art brand Pretty Woman, should know. Since perfection is key to pulling off a fancy-fingered look, Vilemsonne recommends keeping nails strengthened and moisturized so that they're in good shape for the art, and be sure to go slowly – most nail-art kits don't come with extras.