The Academy Awards is one of the most prestigious in the already glamorous world of Hollywood and the Oscars 2013 proved to be no exception to the rule. The actual awards ceremony is only the second half of the evening.

The first is the red carpet arrivals... and this is where fashion statements are made or a poor wardrobe choice tweeted around the world considerable disdain.

Some sashay down the carpet with head-turning looks, bringing massive doses of style. And some others turn up as complete fashion disasters.

As the 85th Academy Awards kicks-off, check out some of the worst dressed celebrities on the big night. They ought to be warned... fashion critics have already started placing them on the worst dressed list.

To start with, Anne Hathaway did it again.

After a trail of recent wardrobe malfunctions, the Les Misérables star opted for a pale pink Prada gown and sadly she doesn't quite seemed to have pulled off the look. The ribbons on the back don't really help her cause any either!

Meanwhile, other stars who may be guilty of a fashion faux pas are Robin Roberts, Good Morning America host Lara Spencer, Jane Fond and comedienne Melissa McCarthy, to name a few.

Scroll down to see the pictures of the worst dressed celebrities of this year:

Oscars 2013 Worst Dressed Celebrities on Red carpet
Anne Hathaway, best supporting actress nominee for her role in "Les Miserables" arrives at the 85th Academy Awards in Hollywood, California February 24, 2013 REUTERS/Adrees Latif
Oscars 2013 Worst Dressed Celebrities on Red carpet
Melissa McCarthy sporting a a platinum David Meister gown. Discussions are going on networking sites if McCarthy wore a blanket to Oscars! Twitter/@tomandlorenzo
Oscars 2013 Worst Dressed Celebrities on Red carpet
Kelly Osbourne sported a black shimmery and strappy Tony Ward Couture dress.The purple hair with that dress, was a complete no-no! Twitter/@freshzone2012
Oscars 2013 Worst Dressed Celebrities on Red carpet
Giuliana Rancic failed to impress in a black Rafael Cennamo gown styled with very simple accessories. Twitter/@GiulianaRancic
Oscars 2013 Worst dressed celebrities on Red carpet
Kelly Rowland struck an Angelina pose in a strapless black and white Donna Karan Atelier dress but failed to impress. Twitter/ @kpoppkpop
Oscars 2013 Worst dressed celebrities on Red carpet
Helena Bonham Carter in her layered Vivienne Westwood gown looked more like she walked straight from her bed to the big night. Twitter/@Univ_espect
Oscars 2013 Worst dressed celebrities on Red carpet
Brandi Glanville certainly over-exposed herself with a lot of cleavage on display in her plunging frock from her very own Brand B fashion label. Twitter/@kasie_banks
Oscars 2013 Worst Dressed Celebrities on Red Carpet
Olivia Munn seemed keen to blend in with the red carpet in her deep red Marchesa dress with a long train that made it difficult for her to move. Twitter/@hellomag
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