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Mariah will be appearing on UK TV show
The X
Factor on Saturday, 8 November!
The X Factor charity song "Hero" burst into the charts
at number one after becoming the fastest-selling charity single of the decade.
The cover of the Mariah Carey hit is sung by the final 12 acts from this year's
X
Factor series. The version of "Hero" -- which is raising money
for servicemen and women injured in the line of duty -- is tipped to become the
biggest-selling release of all time.