"There was definitely a while there where I was homeless and I would bounce around from friend's house to friend's house or sleep in bathrooms where I worked at." Everything changed, however, when his grandpa stepped in to help provide love and shelter for the New Orleans resident.

New Orleans street performer Jourdan Blue has a story to tell and a voice to share. Blue, 23, brought both to the "America's Got Talent" stage Tuesday night to audition for a spot in the 20th season of the talent competition series. Jaws dropped. The studio audience cheered. All four judges stood.

America's Got Talent premieres May 27 on NBC. Before the competitors perform in front of judges Simon Cowell, Howie Mandel, Mel B and Sofía Vergara, learn more about what it's like to be on the show.