The party is keenly watched by the fashion crowd, as many celebrities wear different outfits from the ones they wore on the red carpet earlier in the evening. Emma Stone, who won best actress for La La Land, had changed into something more casual, accessorised by the blue American Civil Liberties Union (ACLU) ribbon. After 2016's Oscars so White controversy, this year's awards were more diverse, with supporting acting wins for Mahershala Ali in Moonlight and Viola Davis in Fences. Best actor winner Casey Affleck arrived with Manchester by the Sea director Kenneth Lonergan, who won best original screenplay award.
IBTimes UK presents a look at the outfits worn by the celebrities at Hollywood's most ridiculously star-studded party.
Amy AdamsPascal Le Segretain/Getty Images, Danny Moloshok /ReutersJennifer Aniston and Justin TherouxDanny Moloshok/ReutersDemi LovatoPascal Le Segretain/Getty ImagesKaty Perry and Derek BlasbergPascal Le Segretain/Getty ImagesScarlett JohanssonPascal Le Segretain/Getty ImagesHailee SteinfeldPascal Le Segretain/Getty ImagesDiane KrugerPascal Le Segretain/Getty ImagesThandie NewtonJean-Baptiste Lacroix/AFPRosie Huntington-Whiteley and Jason StathamPascal Le Segretain/Getty ImagesCiara and Seattle Seahawks quarterback Russell WilsonPascal Le Segretain/Getty Images, Danny Moloshok/ReutersSofia VergaraPascal Le Segretain/Getty Images, Jean-Baptiste Lacroix/AFPSiaPascal Le Segretain/Getty Images, Danny Moloshok/ReutersHalle BerryPascal Le Segretain/Getty ImagesRooney MaraPascal Le Segretain/Getty ImagesReese WitherspoonPascal Le Segretain/Getty ImagesPatricia ClarksonPascal Le Segretain/Getty Images, Jean-Baptiste Lacroix/AFPKate BosworthDanny Moloshok/ReutersMiranda KerrPascal Le Segretain/Getty ImagesMinnie DriverPascal Le Segretain/Getty Images, Danny Moloshok/ReutersJessica Biel and Justin TimberlakePascal Le Segretain/Getty ImagesTracy Pollan and Michael J FoxPascal Le Segretain/Getty ImagesMariah CareyPascal Le Segretain/Getty ImagesMalin AkermanPascal Le Segretain/Getty ImagesLily CollinsPascal Le Segretain/Getty ImagesJoe Jonas (L) and Nick JonasDanny Moloshok/ReutersJessica AlbaPascal Le Segretain/Getty Images, Danny Moloshok/ReutersAndreja Pejic and Caitlyn JennerPascal Le Segretain/Getty Images, Danny Moloshok/ReutersJared LetoPascal Le Segretain/Getty ImagesAdrien Brody and Lara LietoPascal Le Segretain/Getty Images, Danny Moloshok/ReutersGeorgia May Jagger, James Jagger, and Elizabeth JaggerPascal Le Segretain/Getty ImagesJackie Chan and Chris TuckerPascal Le Segretain/Getty ImagesRupert Murdoch and Jerry HallPascal Le Segretain/Getty Images, Danny Moloshok/ReutersMegyn KellyPascal Le Segretain/Getty ImagesElon Musk and his mother MayeDanny Moloshok/ReutersDakota JohnsonPascal Le Segretain/Getty ImagesKate BeckinsalePascal Le Segretain/Getty ImagesAnjelica HustonJean-Baptiste Lacroix/AFPGabrielle UnionPascal Le Segretain/Getty Images