15-year-old slays Christina Aguilera song in viral 'X Factor' audition

Natalie Ong stunned audiences with her X Factor audition when she took on Christina Aguilera's notoriously difficult 'The Voice Within.'​​​​

See her nail the song in the video above!

RELATED: Christina Aguilera through the years:

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Christina Aguilera through the years
THE VOICE -- 'Live Semis' Episode 817B -- Pictured: Christina Aguilera -- (Photo by: Trae Patton/NBC/NBCU Photo Bank via Getty Images)
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