The 2013 Oscars brought the biggest stars together under one roof -- and while most stunned on the red carpet ... some definitely missed the mark.

We're not sure what Brandi Glanville was doing at the Academy Awards, but she definitely garnered plenty of attention with her cleavage-baring gown.

It's no wonder she showed the most skin on the carpet -- she personally designed her dress with her My Brand B line.

We love, love Melissa McCarthy ... but her grey gown did nothing for her body shape and that hair was well, a little Elvira-esque.

Anne Hathaway, who generally gets it right on the red carpet, disappointed in this dated Prada dress. Not only was it on the boring side ... but the the sheer material also revealed that Anne was feeling a little bit cold (get out drift?). At least Brandi was smart enough to not show that.

See who else made our worst dressed list by clicking "Launch Gallery" above!

Now, onto the ladies who got it right on the red carpet!

Sandra Bullock looked flawless in her Elie Saab black lace gown. This is definitely the Oscar-winner's go to look, but we can see why! The only thing we wish she did different was pick a clutch that matched and styled her hair in some sort of updo.

Jessica Chastain stole the spotlight in her nude Giorgio Armani metallic gown. The "Zero Dark Thirty" actress was the quintessence of Old Hollywood glamour with her side-swept curls and bold lip.

And Naomi Watts showed off her amazing figure and style in her gun metal Giorgio Armani Prive ensemble. Not only was the corset of the dress very fashion forward, but the fit was simply stunning on "The Impossible" starlet.

See who else made our best dressed list by clicking "Launch Gallery" above! Who do you think had the best (or the worst) look at the Oscars? Sound off below!

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