The 83rd Annual Academy Awards took place Sunday night. All of Hollywood's biggest stars gathered at the Kodak Theatre in Los Angeles to honor the best films of the year. Natalie Portman took home the award for Best Actress for her role in Black Swan, while Colin Firth won Best Actor for his performance in The King's Speech. The Oscar for Best Picture was awarded to The King's Speech. The show was hosted by actor James Franco and actress Anne Hathaway. Throughout the night, Hathaway wore a total of eight different outfits. From a red gown, to a skin-tight silver dress and a tuxedo, Anne Hathaway impressed with her fashion-forward ensembles. Here's a look at her outfits throughout the night.

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Anne Hathaways transformation
Actress and co-host Anne Hathaway walking the red carpet at the 2011 Oscars in a red, archival Valentino dress. Reuters
Anne Hathaway
For the start of the ceremony, Anne Hathaway changed into a white gown. Reuters
Oscar host, Anne Hathaway
"My favorite adult moment was when Melissa leo let the F-bomb rip. I went up to her and said 'you just set the tone for the show and gave us material forever'." — Oscar co-host Anne Hathaway, on the red carpet at the Governor's Ball. Reuters
Anne Hathway
Anne Hathaway showed off her dress while presenting with her co-host James Franco. Reuters
Anne Hathaway
Next up was a deep red, sleeveless gown. Reuters
Anne Hathaway
The actress later changed into a long-sleeved, turtleneck gray dress. Along with her dresses, the host's hairdos also changed throughout the night. Reuters
Anne Hathaway
The host sang a song, directed toward actor Hugh Jackman in a woman's tuxedo. Reuters
Anne Hathaway
Following a trend of the night, Anne Hathaway changed into a floor-length purple gown. Reuters
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