The 2014 Screen Actors Guild Awards are on tomorrow, and we'll be celebrating 20 years of the show's glamorous red carpet. Before we see how our favourite stars are doing their hair and makeup this year, though, take a look back at some of the most memorable beauty moments from years past. Whether they inspired you or made you do a double take, these aren't looks you're likely to forget. Click through the gallery, then be sure to catch all of the SAG Awards red-carpet action right here at POPSUGAR Beauty!
— Additional reporting by Kaitlyn Dreyling