<P> Nash's first national appearance was on Showtime at the Apollo in 2002, where she sang the Alicia Keys song "Fallin"'. She performed at the 2003 Essence Awards, singing Michael Jackson's song "Who's Lovin' You" in honor of Mary J. Blige . She and her younger sister Olivia sing the hook in the song "Black Girl Pain" on Talib Kweli's 2004 album The Beautiful Struggle . </P> <P> She played a ten - year - old Fantasia Barrino in the 2006 Lifetime Original Movie Life Is Not a Fairytale: The Fantasia Barrino Story, a biopic about the 2004 American Idol winner . </P> <P> In the 2007 film August Rush, Nash's character "Hope" is the lead vocalist on the song "Raise It Up", which was nominated for the Academy Award for Best Original Song . </P> <P> Nash performed "Raise It Up" from August Rush at the 2008 Academy Awards, making her the youngest ever to perform on an Academy Awards telecast . Also at the Academy Awards, she was shown on stage playing tennis via Wii Sports with the host Jon Stewart until he noticed the crowd behind her and she ran off stage . Her latest appearance was on July 18, 2009, in the Kennedy Center . She sang Celine Dion's song "Let's Talk About Love" as a tribute for the Apollo program's 40th anniversary . </P>

Who is the little girl singing in august rush
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