Alex and Sierra – X Factor USA 2013 Audition – Toxic (VIDEO)
Alex and Sierra auditioned for The X-Factor 2013 with Britney Spear’s “Toxic”. Watch the performance below.
See more X-Factor USA videos here.
VIDEO
Interview
They’re in love, they sing, AND they sing together! Sounds like a disaster? No, it’s actually music to our ears. Check out our nerdy, adorable songbirds Alex and Sierra.
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