VIDEO: Tiah Tolliver Sings Blackstreet's "No Diggity" for Simon Cowell on The X Factor, October 16, 2011 Tweet October 16, 2011 by Semhar Related: The X Factor, Contestants , Music , Season 1 Episode 7 , Tiah Tolliver Credit: YouTube Though she could use a little help in the wardrobe department, we're loving Tiah's sound and performance swagger. Simon?
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