Mike Yung 57-year-old has spent 37 years of his life singing in the subway. He always hoped someone would head hunt him on YouTube and that it would kick start his career. He was pushed to go on “America’s Got Talent” by his wife but he wasn’t sure, his dreams came true when he began singing. Within seconds of opening his mouth, the judges were shocked and had chills sent down their spines. His incredible cover of “Unchained Melody” had everyone wanting more.