Supermodel Naomi Campbell was the biggest winner at the ELLE Style Awards in London February 23, being honored with the magazine's Outstanding Contribution prize.

Campbell received the prize for her 25 years in fashion but also for her work for The White Ribbon Alliance (WRA) that promotes safe pregnancy. Recently, the supermodel has made headlines mainly with charity work - her two Fashion for Relief showcases in New York and London during the fashion weeks, for instance.

Singer Kylie Minogue gave the award of TV Star of the Year to her sister Dannii, who has been a judge on the British talent show X-Factor.

Carey Mulligan, fashion's current red carpet darling and star of An Education, won Actress of the Year after just having won at the BAFTAs. Colin Firth, who stars in designer Tom Ford's directing debut A Single Man, was named Actor of the Year.

Kristen Stewart's Woman of the Year award puzzled some attendees, while Claudia Schiffer seemed an appropriate choice as Model of the Year.

Finally, actresses-turned-designers, Mary-Kate and Ashley Olsen were named this year's Style Icons, fellow it-girl Alexa Chung won the Editor's Choice award, and the Music Star of the Year prize went to Florence and the Machine.

Here's the complete list of winners:

Editor's Choice: Alexa Chung

Woman of the Year: Kristen Stewart

Actress of the Year: Carey Mulligan

Actor of the Year: Colin Firth

Model of the Year: Claudia Schiffer

TV Star of the Year: Dannii Minogue

Style Icons: Mary-Kate and Ashley Olsen

Music Star of the Year: Florence and the Machine

Outstanding Contribution: Naomi Campbell