Some of the most fashionable women in the U.S. jetted to London this week -- where they were honored by Glamour Magazine.

Jessica Alba, Lea Michele, Sofia Vergara, Eva Longoria, Lily Collins, Kelly Rowland and Kylie Minogue were all on hand for the 2012 Glamour Women of the Year Awards last night ... and all dressed up for the occasion.

Alba and Vergara put their girls on display in a couple cleavage-enhancing dresses, while "Glee" star Michele went glam in a gorgeous blue gown.

Which one was your favorite? See all the celebs in attendance above!

And while most of the awards were handed out to women, "Avengers" star Tom Hiddleston was also honored for "Man of the Year."

More winners below:

Solo Artist: Jessie J
Comedy Actress: Sofia Vergara
Entrepreneur: Jessica Alba
Band: Florence And the Machine
TV Personality: Kelly Rowland
US TV Actress: Lea Michele
Pandora Breakthrough: Lily Collins
Film Actress: Viola Davis
Inspiration: Eva Longoria
Man Of The Year:Tom Hiddleston
Fashion Designer: Donatella Versace
Outstanding Contribution: Kylie Minogue
Icon: Dionne Warwick

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