PHOTOS: It's All About The Women

It was a glittering night of girl power on Monday as the best and brightest women from politics, art, social justice and fashion came together forGlamour's Women of the Year Awards.

Now in its 21st year (as the mag's editor-in-chief Cindi Leive said in her introductions, "We're finally legal!"), the awards ceremony at Carnegie Hall combined high-profile women with often underrepresented causes, highlighting the amazing work accomplished by females in 2011.

And how amazing it was. Jessica Alba wore a glittering black Tory Burch dress to present to Tory Burch herself (who reminded the audience, "Women are our best investment"); Jennifer Aniston wore black (natch) Versace to introduce Chelsea Handler, about whom she declared, "I am madly in love!"; andDecember cover girl Jennifer Lopezglowed in Versace when accepting the evening's final honor from Donatella Versace herself.

But celebs aside, the night belonged to the activists and professional change-makers: Gloria Steinem, introduced by Anita Hill; former sex trafficking victim T, introduced byNewark mayor Cory Booker; Laura Bush and daughters Barbara and Jenna, honored by Condoleezza Rice; Gabrielle Giffords, who was honored from afar by Diana Sawyer; and "Facebook Girl" Esraa Abdel Fattah, who accepted praise from Kerry Washington for her pivotal role in kicking off the Arab Spring in Egypt.

And the overall message? If you want it, you can do it. As honoree (and our boss) Arianna Huffington said, when explaining how her life in New York began:

"Then I hit 30 and desperately wanted to have children. The man I’d been with for seven years wanted to have cats. So I did something
that I was terrified to do: I left the man I was deeply in love with and moved from London to New York. And basically everything that's happened in my life -- my children, my books, The Huffington Post, the fact that I'm standing here tonight -- happened because a man wouldn't marry me."

Amen to that. See the impressive array of women (and a few men) in our red carpet slideshow below, and watch the acceptance speech from our own Arianna Huffington.

Donatella Versace and Jennifer Lopez

Jennifer Lopez in an Atelier Versace dress and Jimmy Choo shoes. Photo via Getty.
Jennifer Lopez in an Atelier Versace dress and Jimmy Choo shoes. Photo via Getty.

Jennifer Lopez

Photo via Getty.
Photo via Getty.

Laura Bush with daughters Jenna Bush Hager and Barbara Bush

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Photo via Getty.

Emma Stone

Emma Stone in Lanvin and a Jack Vartanian ring. Photo via Getty.
Emma Stone in Lanvin and a Jack Vartanian ring. Photo via Getty.

Emma Stone

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Photo via Getty.

Condoleeza Rice

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Photo via Getty.

Marc Jacobs

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Photo via Getty.

Catherine Malandrino

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Photo via Getty.

Lea Michele

Lea Michele in a Jenny Packham dress, Sergio Rossi shoes, Tiffany & Co jewels and a Jimmy Choo bag. Photo via Getty.
Lea Michele in a Jenny Packham dress, Sergio Rossi shoes, Tiffany & Co jewels and a Jimmy Choo bag. Photo via Getty.

Arianna Huffington

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Photo via Getty.

"Facebook Girl" Esraa Abdel Fattah

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Photo via Getty.

Kerry Washington

Kerry Washington in Marchesa dress and clutch and Louboutin heels. Photo via Getty.
Kerry Washington in Marchesa dress and clutch and Louboutin heels. Photo via Getty.

Wendy Williams

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Photo via Getty.

Sandra Lee

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Photo via Getty.

Cindi Leive

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Photo via Getty.

Chelsea Handler

Chelsea Handler in Stella McCartney. Photo via Getty.
Chelsea Handler in Stella McCartney. Photo via Getty.

Gloria Steinem

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Photo via Getty.

Tory Burch and Jessica Alba

Jessica Alba in a Tory Burch dress and clutch, Jimmy Choo shoes, and Neil Lane jewels. Photo via Getty.
Jessica Alba in a Tory Burch dress and clutch, Jimmy Choo shoes, and Neil Lane jewels. Photo via Getty.

Jessica Alba

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Photo via Getty.

Emme

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Photo via Getty.

Liya Kebede

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Photo via Getty.

Rachel Roy

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Photo via Getty.

Anita Hill

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Photo via Getty.

Debbie Harry

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Photo via Getty.

Jennifer Aniston presenting to Chelsea Handler

Jennifer Aniston in a Versace dress, Celine shoes, and Fred Leighton jewels. Photo via Getty.
Jennifer Aniston in a Versace dress, Celine shoes, and Fred Leighton jewels. Photo via Getty.

Donatella Versace presenting to Jennifer Lopez

Photo via Getty.
Photo via Getty.

Diane Sawyer presenting to Gabrielle Giffords

Photo via Getty.
Photo via Getty.

Cindy Sherman

Cindy Sherman in Marc Jacobs. Photo via Getty.
Cindy Sherman in Marc Jacobs. Photo via Getty.

Barbara Walters presenting to Arianna Huffington

Photo via Getty.
Photo via Getty.

Debbie Harry performing

Debbie Harry in a Givenchy skirt. Photo via Getty.
Debbie Harry in a Givenchy skirt. Photo via Getty.

This article originally appeared on HuffPost.