Mike Yung: The Viral Subway Singer Lets It ALL LOOSE for The Semifinals | America's Got Talent 2017
#Full Segment | America’s Got Talent Season 12 | Semifinals 1 | Episode 19 #talentshows For more HD full episode videos of America’s Got Talent – please subscribe & follow » Get The America's Got Talent App: http://bit.ly/AGTApp » Subscribe