The 30-year-old joined regular panelists Heidi Klum, Nina Garcia and Zac Posen to help pick the best catwalk outfit on the season 12 launch episode, which tasked a new crop of budding fashion designers with creating a fashionable outfit from a grass-stained parachute, reported Contactmusic.
Bosworth looked effortlessly chic in a black mini dress with her luscious locks draping her shoulders as she scored the designs coming down the runway.
The star follows in the footsteps of fellow celebrity guest judges who have sat on the 'Project Runway' panel, including Nicole Richie, Victoria Beckham, Sarah Jessica Parker and Eva Longoria.