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  • Crystal Bowersox traded in her guitar for the piano for Gladys Knight’s ‘Midnight Train to Georgia’ during Top 10 Week on ‘American Idol’ on March 30, 2010
  • Pink, Gladys Knight, Celine Dion, Justin Bieber, Toni Braxton, Wyclef Jean and more perform at the ‘We Are The World 25 Years for Haiti’ recording session held at Jim Henson Studios on February 1, 2010 in Hollywood, Calif.
  • Gladys Knight performs onstage during the BET Honors at the Warner Theater, Washington, D.C., January 12, 2008
  • Gladys Knight attends ‘An Enduring Vision’ the 7th Annual Elton John Aids Foundation Benefit at Cipriani Wall Street on November 11, 2008 in New York City
  • Taylor Hicks & Gladys Knight at the Orange Bowl

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  • FOX

    Crystal Bowersox traded in her guitar for the piano for Gladys Knight’s ‘Midnight Train to Georgia’ during Top 10 Week on ‘American Idol’ on March 30, 2010
  • WireImage

    Pink, Gladys Knight, Celine Dion, Justin Bieber, Toni Braxton, Wyclef Jean and more perform at the ‘We Are The World 25 Years for Haiti’ recording session held at Jim Henson Studios on February 1, 2010 in Hollywood, Calif.
  • Getty Images

    Gladys Knight performs onstage during the BET Honors at the Warner Theater, Washington, D.C., January 12, 2008
  • Getty Images

    Gladys Knight attends ‘An Enduring Vision’ the 7th Annual Elton John Aids Foundation Benefit at Cipriani Wall Street on November 11, 2008 in New York City
  • AP

    Taylor Hicks & Gladys Knight at the Orange Bowl