The men of In The Stairwell are a crowd favorite on America's Got Talent. The unique thing about this group is that all of the members are in the United States Air Force Academy.
Their songs combine strong vocals and fun dance movies in such a refreshing way. Their amazing a cappella talent never fails to wow the judges each time they perform. In this video, these guys are performing an a cappella version of "Castle On The Hill" by Ed Sheeran.
I have no idea how they manage to impress the audience with even more talent each time they sing. Every time I listen to them sing I can't help but start tapping my toes. What an amazing bunch of talent!