An Inauguration Celebration

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Party People

Ashanti celebrated with Entourage's Adrian Grenier at the Rock the Vote and Rolling Stone bash.

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A Portrait of Hope

David Arquette posed next to Shepard Fairey's "Hope" artwork at the National Portrait Gallery on Jan. 19.

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Declaring Themselves

Lindsay Lohan and Samantha Ronson are all smiles as they attend the Declare Yourself event in D.C. on Jan. 18.

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A Busy Weekend

Rosario Dawson, one day after hosting Saturday Night Live, attended the Latino Inaugural Gala, "Celebrando El Cambio" on Jan. 18 in D.C.'s Union Station.

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Obama Mama

Whitney Houston arrived in D.C. for the inauguration Friday wearing a black-and-white knit Obama cap.

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The Boss

Bruce Springsteen performed "The Rising" in front of a gospel choir at the We Are One kick-off concert at the Lincoln Memorial on Jan. 18. The Boss Bruce Springsteen performed "The Rising" in front of a gospel choir at the We Are One kick-off concert at the Lincoln Memorial on Jan. 18. The Boss Bruce Springsteen performed "The Rising" in front of a gospel choir at the We Are One kick-off concert at the Lincoln Memorial on Jan. 18. The Boss Bruce Springsteen performed "The Rising" in front of a gospel choir at the We Are One kick-off concert at the Lincoln Memorial on Jan. 18.

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A Plane to the President

Disney star Demi Lovato landed in D.C. on Jan. 18 -- one day before her performance at the Inaugural Concert for Kids.

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The First Couple

Barack and Michelle Obama -- who was wearing a camel coat, top and skirt all by Narciso Rodriguez -- wave to fans at the Lincoln Memorial during the star-studded kick-off concert on Jan. 18.

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Latin Lovers

Jennifer Lopez -- who stunned in a blue Marchesa silk gown -- and Marc Anthony attend the Latino Inaugural Gala, "Celebrando El Cambio" on Jan. 18 in D.C.'s Union Station.

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They've Got Soul

Shakira, Stevie Wonder and Usher performed Wonder's "Higher Ground" at the We Are One kick-off concert at the Lincoln Memorial on Jan. 18.

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Proud Parents

Parents Cash Warren and Jessica Alba attend the Declare Yourself "A New Birth of Citizenship" event at the Renaissance Hotel in D.C. on Jan. 18.

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A Family Affair

The new First family watch as performers such as Beyonce, U2 and Sheryl Crow put on a concert in Obama's honor in D.C. on Jan. 18.

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Anchor's Away!

Katie Couric, at L.A.'s LAX airport on Jan. 16, waits to board a plane to D.C., where she will anchor a CBS news special on Obama's impending presidency.

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A Famous Fan

At the end of the We Are One kick-off concert at the Lincoln Memorial on Jan. 18, actor Jack Black got to meet the next President.

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A Scarf For Sarah

Comedian Sarah Silverman braved D.C.'s cold temperatures at the Declare Yourself event on Jan. 18.

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Shaking It Up

Shakira dazzled in a green gown at the Latino Inaugural Gala, "Celebrando El Cambio" on Jan. 18 in D.C.'s Union Station.

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One Love

Sheryl Crow and will.i.am performed Bob Marley's "One Love" at the kick-off concert for Obama at the Lincoln Memorial in D.C. on Sunday.