We've been quietly admiring these cutouts from afar, but it's time to dive right in to this skin-baring trend. The London premiere of The Girl With the Dragon Tattoo not only gave us more reason to be excited for the movie's release stateside, but leading lady Rooney Mara also stunned in a white embroidered Givenchy couture gown. Thanks to the subtle yet sexy cutout details, she flashed just enough skin to add a seductive flair to her elegant look. Olivia Wilde donned a keyhole cutout-enhanced black dress, Nicky Hilton chose a bright turquoise dress complete with sleek darted cutouts, and Nicole Richie channeled her edgier side in a leather boxy cutout gown. Take a look at how each chic celeb interprets this peekaboo detail and then shop similar looks at the end of the slideshow!