Judges are speechless! Twin brothers lost parents but their bond takes the song to a complete new level!

<p id="watch-headline-title" class="yt"><span id="eow-title" class="watch-title long-title yt-uix-expander-head" title="The Royce Twins - The X Factor Australia 2013 - AUDITION [FULL]" dir="ltr">The Royce Twins - The X Factor Australia 2013 - AUDITION</span></p>