We all know stars undergo 180-degree transformations every day to become the shining, radiant faces we see on the red carpet and elsewhere. But just how drastic are those transformations? And what do our favorite celebs look like before their hair and makeup crews have launched full-scale attacks each morning?
To celebrate the spectacular efforts these stars must endure to show off their best selves, we've compiled a retrospective of some of today's biggest celebrities who have been spotted without their faces all done up for the hungry paparazzi.
Click though the slideshow below to compare stars' stripped-down looks to their glamor shots, and let us know what you think of the transformations in the comments.