Which wild card 'AGT' acts are going to semis?

America's Got Talent's results show moved four wild card acts into the semifinals.

"It's gonna be intense," said host Nick Cannon. He introduced judges Howie Mandel, Sharon Osbourne (who gave her signature heart gesture with her hands) and Howard Stern (who tried to make a more sweeping heart gesture).

"We're going to have to work on that," Nick told him.

First group on stage: Sebastien, Bandbaz Brothers and Ben Blaque. Advancing: Sebastien "El Charro De Oro." Said the mariachi kid, "It feels real good to let America know that even though I'm a small package like Jackie Evancho, I'm able to have a big voice like she does."