Ashley Greene at Do Something Awards 2012

The Do Something Awards brought more than just social change efforts to the forefront last night, it also inspired a bevy of do-good starlets to hit the evening's blue carpet in their Sunday best. Glee's Lea Michele stayed true to her signature brand of skin-baring sexy ensembles, this time in an off-white Giorgio Armani number. Her plunging ruffled neckline and center thigh-high split made for two very revealing outfit details. Ashley Greene put her love of metallic shine to the test in a printed Michael Kors dress, matching gold snakeskin belt, and peep-toe Giuseppe Zanotti pumps, while Sophia Bush stunned in an unforgettable orange Olcay Gulsen column dress. There were other notable daring counts of color, print, and silhouette to be had, courtesy of Nikki Reed, Olivia Munn, Kristen Bell, and more. Click through to see who wore what (and who wore it best) — then, leave your pick for most fab in the comments below.