This 6-year-old Boy Is Doing The Sweetest Thing For His Little Brother!How Precious!

<p id="watch-headline-title" class="yt"><span id="eow-title" class="watch-title long-title yt-uix-expander-head" title="Cutest six year old big brother signing lullaby to newborn baby brother" dir="ltr">Cutest six year old big brother signing lullaby to newborn baby brother</span></p>