The inspiring musician and 'America's Got Talent' hopeful opened up to ET about how he battled a degenerative nerve disease using his love of music and reveals his plans for helping others like him.

This hour is all about extraordinary kids, and 14-year-old Pilar Winter Hill is no exception! She is an amazing violinist who was named one of Teen Vogue's "21 Under 21 2019: The Young People Changing ...