Rosario Dawson was born may 9, 1979 in New York City. Her mother, Isabel Celeste, is a writer and singer of Puerto Rican and Cuban ancestry. Isabel was 16 years old when Rosario was born; she never married Rosario's biological father, Patrick C. Harris. When Rosario was a year old, her mother married Greg Dawson, a construction worker, who "loved and raised Rosario as his own daughter". Dawson stated, "He's always been my dad." Dawson has a half-brother, Clay, who is four years younger. At the age of 21, Isabel moved the family into an abandoned building, a squat on the Lower East Side of Manhattan, where she and her husband renovated an apartment and installed the plumbing and electrical wiring for the building, creating affordable housing where Rosario and Clay would grow up. Dawson has cited this part of her history when explaining how she learned that, "If you wanted something better, you had to do it all yourself." As a child, Dawson made a brief appearance on Sesame Street. At age 15, she was subsequently discovered on her front-porch step by photographer Larry Clark and Harmony Korine, where Korine lauded her as being perfect for a part he had written in his screenplay that would become the controversial 1995 film Kids. She went on to star in varied roles, ranging from independent films to big budget blockbusters including Rent, He Got Game, and Men in Black II. In 1998, Dawson teamed up with Prince for the re-release of his 1980s hit "1999". The new remixed version featured the actress in an introductory voice over, offering commentary on the state of the world in the year before the new millennium. The following year, she appeared in The Chemical Brothers' video for the song "Out of Control" from the album Surrender. She is also featured on the track "She Lives In My Lap" from the second disc of the OutKast album Speakerboxxx/The Love Below, in which she speaks the intro and a brief interlude towards the end. In 2001, she appeared in the movie, Josie and the Pussycats as band member Valerie Brown. Dawson at the 2011 Cannes Film Festival. Dawson starred as Naturelle Rivera, the love interest of a convicted drug dealer played by Edward Norton, in the 2002 Spike Lee film drama, 25th Hour. In the 2004 Oliver Stone film Alexander, she played the bride of Alexander the Great. In the autumn of 2005, Dawson appeared on stage as Julia in the Public Theater's "Shakespeare in the Park" revival of Two Gentlemen of Verona. It was her first appearance on stage.

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