This is probably the sweetest thing you'll see all day.
A young boy sings Dan and Shay and Justin Bieber's hit "10,000 Hours" to his baby brother, who has Down syndrome. The guys have reposted the sweet video on their Instagram page and are hoping they can find the mom who posted it so they can do something nice for the brothers. They're asking for anyone who might know the family to tag them in this post on Instagram or direct message them with the family's information!