YouTube superstar Susan Boyle made her U.S. TV debut on the season finale of America's Got Talent Wednesday singing a cover of "Wild Horses" by the Rolling Stones. Boyle, who's first album will be out November 24, won worldwide attention singing "I Dreamed a Dream" on Britain's Got Talent earlier this year. "I used to be a spectator looking out at the world," the Scottish spinster told the audience in a taped video, "but now I'm part of that world." (Photo: WENN)

Watch it here:

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