Girl with anxiety disorder got emotional, didn't expect her singing could touch Judges like that!

<p id="watch-headline-title" class="yt"><span id="eow-title" class="watch-title long-title yt-uix-expander-head" title="Anna Clendening: Nervous Singer Delivers Stunning &quot;Hallelujah&quot; Cover - America's Got Talent 2014" dir="ltr">Anna Clendening: Nervous Singer Delivers Stunning "Hallelujah" Cover - America's Got Talent 2014</span></p>