The stars came out in grand fashion as they hit the red carpet for the 86th annual Academy Awards on Sunday. Here are our picks for best- and worst-dressed and some of our favorite trends.The bestLupita Nyong’oThis year’s awards-season darling, Lupita Nyong’o has taken both Hollywood and the fashion world by storm thanks to her impeccable acting chops and style. Not one to disappoint, the 12 Years a Slave star and newly minted Oscar winner looked ethereal in a baby-blue gown that was made for her by Prada. Charlize TheronMaking an appearance on our list for a second year in a row, Charlize Theron turned heads (and left the E! News correspondents speechless) as she strutted on to the red carpet in a black Dior gown.Amy Adams Best Actress nominee Amy Adams looked gorgeous in a sculptural navy blue gown by Gucci, a far cry from the plunging necklines she wore in American Hustle.The worstPharrell WilliamsA month after making headlines for wearing a Vivienne Westwood Buffalo Hat to the Grammys, Best Original Song nominee Pharrell grabbed attention (again) for all the wrong reasons when he stepped out in Bermuda shorts for Hollywood’s biggest night.Penelope CruzWhen you’re as stunningly beautiful as Penelope Cruz, it’s hard to go wrong on the red carpet. Unfortunately, Cruz’s Giambattista Valli gown left us with mixed feelings and visions of a college toga party.Margot RobbieIn what came as one of the most shocking moments of the red carpet, blonde bombshell Margot Robbie was almost unrecognizable with her new brunette do, black gown and burgundy lips. While she might not have looked like a train wreck, we know how great she’s looked before (ahem, Golden Globes) and were totally underwhelmed.TrendsMaternity wear gone glamProving that pregnancy can be quite the glamorous affair, expectant mothers Kerry Washington (in Jason Wu) and Olivia Wilde (in Valentino) stunned in gowns that accented their growing bellies. White tuxedosBreaking away from the sea of standard black tuxedos, the men of Dallas Buyers Club (Best Actor winner Matthew McConaughey and Best Supporting Actor winner Jared Leto) wore matching ensembles for their big night out.