ADORABLE Couple Alex And Sierra, Make The Judges Go Wild On X Factor USA 2013 ! ▶︎ Watch more of Top Talent here /TOPTALENT_SUBTop Talents pulls the best of X Factor, Got Talent & Idols from around the world! From the most amazing to some of the funniest auditions and performances we've ever seen! Watch them all here on YouTube! Never miss an upload subscribe today! #Xfactor #Simincowell #AlexAndSierra