BEST: No surprise here -- Charlize Theron nailed it again in a gorgeous red mermaid gown with a sleek train, sexy straps and plunging neckline that was accented by a long, drop diamond necklace. (Photo by Todd Williamson/Getty Images)
WORST: "Room" star Brie Larson looked just about ready for the homecoming dance in a ruffled, cobalt gown with a thick, embellished accent belt that erred on the side of cheesy. (Photo by Jeff Kravitz/FilmMagic)
WORST: Mindy Kaling went with a dramatic off-the-shoulder black gown with a billowing blue bow in the back, but it failed to wow. (Photo by Jason Merritt/Getty Images)
WORST: Whoa! Kate Winslet looked like she was dipped in oil in this slick black gown -- but paired with her messy 'do, the look flopped. (Photo by Jason Merritt/Getty Images)
WORST: Between the wild print, collar and cape,Manta Ray's gold dress had a little too much going on. (ANGELA WEISS/AFP/Getty Images)
WORST: We're not sure what Amy Poehler was aiming for when she slipped on this black gown with colorful, floral embroidery. (Photo by Todd Williamson/Getty Images)
BEST: Leave it to Rachel McAdams to totally steal the spotlight at the Oscars in a sea of A-listers. The gorgeous actress was a total knockout in an emerald halter dress with a dramatic train and sexy slit. (Photo by Todd Williamson/Getty Images)
BEST: Actress Daisy Ridley looked totally classic in a gorgeous silver, ankle-length dress. A sheer hemline and subtle peplum added interesting focal points to otherwise completely beaded frock. Dainty slippers, diamond accessories complemented the look perfectly, while a red lip added a glamorous pop of color. (Photo by Jason Merritt/Getty Images)
WORST: Sofia Vergara looked great, but we still don't love her pageant-esque gown with sparkles and ruffles galore. (Photo by Todd Williamson/Getty Images)
WORST: "Game of Thrones" actress Sophie Turner channeled old Hollywood glamor in a sexy satin gown, diamonds and soft curls. While Turner looks great in the gown, it feels flimsy and unsubstantial for the high-profile event. Plus, the color washes her out. (Photo by Todd Williamson/Getty Images)
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It may be Hollywood's biggest night -- but the Oscars are huge for fashion, too.
Awards season 2016 culminated in the A-list 88th Academy Awards on Sunday, as celebs geared up to flaunt their most glamorous looks on the red carpet. Some stars, like Alicia Vikander and Charlize Theron, clearly saved their best for last, while others, like Brie Larson and Kerry Washington, disappointed in less-than-dazzling looks.
Click through the slideshow above to see our picks for the best and worst dressed at the 2016 Oscars.