Four dapper gentlemen walked on to the “America’s Got Talent” stage during last night’s premiere. When the group was asked its name, one bow-tie-clad man replied, “La Fontane Umane.” With such a fancy name, the natural follow-up was: “Where are you from?” The answer was Denver, Colorado. After the crowd was done laughing at the unexpected answer for such an Italian name, they took a moment to share what they do for a living, and the traditional answers followed: real estate, advertising, investment banking. The fourth man added, “I have a podcast with my mom.” OK, then. The group announced it would be performing “My Heart Will Go On.” It was go time. The strings began, and you could almost picture Jack and Rose.