46:16

All Alex and Sierra Performaces on T X FACTOR US 2013

2:32:29

TOP 25 Most Watched X Factor Auditions EVER!

3:05

Alex & Sierra - Little Do You Know (Video)

16:37

Andrea Begley All performences The voice UK 2013

12:47

Alex & Sierra Answer Fan Questions!

26:50

Top 10 Best Singing Auditions of ALL TIME!!!!!

42:13

Alex & Sierra -X FACTOR 2013 - ALL IN ONE

35:28

Blind Auditions That Delivered Show-Stopping 4-Chair Turns on The Voice!