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Über Alex & Sierra
Alex Kinsey and Sierra Denton are a Florida-based duo (and real couple) who won the third and final season of X Factor USA.

Alex & Sierra
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Alex Kinsey and Sierra Denton are a Florida-based duo (and real couple) who won the third and final season of X Factor USA.
Top-Titel
Über Alex & Sierra
Alex Kinsey and Sierra Denton are a Florida-based duo (and real couple) who won the third and final season of X Factor USA.