Son With Two Dads Tearfully Sings to His Birth Mom

Campbell Walker Fields was adopted and raised by a gay couple after his birth mother was unable to take care of him. "My dads have done so much for me," he says.

Though the 14-year-old singer never met his mother, he still wants to make her proud. "I am really thankful she gave me up for adoption, so I didn't have to struggle."

Fields took to the America's Got Talent stage for an emotional cover of "A Thousand Years." Grab some Kleenex and enjoy:

Oh, and then this heart melting group hug happened.