ROSE BYRNE rocked a sequined black Vivienne Westwood gown at the 2012 Oscars, and she looked absolutely fabulous.

Plus don’t you just love her Cleopatra-esque haircut?

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The Australian stunner, who joined her “Bridesmaids” co-stars on stage at the Kodak Theatre to present the three short-film categories, showed off her svelte, model-like bod in a sparkling, one-shouldered Vivienne Westwood gown, which she paired with black Jimmy Choo heels and a black clutch encrusted with diamonds.

Rose Byrne posing for GQ Australia, Byrne is an Australian actress. The only little thing I know of Byrne is that she has starred with Matt Dillon in the City of Ghosts. GQ like Vanity Fair always manages to do such classy, sexy poses of celebrities, don’t they?

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Rose got into acting at the age of 13 in Australia and she’s appeared on different Aussie TV shows and films. Rose has also starred in a few music videos as well.