By Leah Ornstein - Breaking Celebrity News Style & Beauty Editor

The gowns, heels and bling won’t be the only things that fashion critics will be judging on Sunday night at the 2012 Academy Awards!

Though being dressed to impress is usually the top priority of Hollywood’s hottest stars at the Oscars, hair and makeup can often make or break a look. Too much eye makeup, the wrong shade of blush, hideously hued lipstick and not-so-hot hair can result in a huge beauty blunder – and even take a star

from the Best Dressed list to the Worst  and Breaking Celebrity News has photos of some of the best Academy Award moments in beauty as well as the biggest blunders.

Michelle Williams rocked perfectly painted, red lips with her marigold Vera Wang gown in 2006, while Kate Hudson looked like she was headed to the saloon, getting her hair done up in a ringlet curl updo!

In 2009 Jennifer Aniston looked superbly sun-kissed and California fresh in natural shades, and Kate Winslet showed off her award-winning beauty rocking a sophisticated and sleek updo.