Who took the top (and bottom) spot this year?
Anne Hathaway, Kerry Washington, Jessica Chastain and Amanda Seyfried earned rave reviews for their fashionably flawless turns on the 2013 Screen Actor's Guild Award's red carpet on Sunday, but only one actress has the notable distinction of being crowned ET's best-dressed star.
Pics: The SAG Awards Fashion Tops & Flops
Click the video to see which lovely lady earned our highest praise! Plus, we reveal our worst-dressed celeb at the SAGs.