Baila Conmigo performs on America's Got Talent 2014 Semi Finals (VIDEO)

Baila Conmigo performed on America's Got Talent 9 Semi Finals 2 on Tuesday, September 2, 2014.

This is a REALLY lively routine, as the entire troupe is dressed in yellow or pink, weaving in and out of synchronized movements. It's all building up to the centerpiece, as the adults form a row and then part ways to allow the kids to be showcased. And they absolutely KILL IT, as I can't remember an act with child dancers that has ever had this much rhythm on the show before. The adults join in, and I'm exhausted just LOOKING at this. Their feet are moving at the speed of The Flash. The crowd is LOUD for these guys, and Mel B and Heidi are on their feet.

Howie loved the act, but thinks the kids are the real stars. He says if it were just the kids, he'd guarantee they'd move on. But with the adults? He's not so sure. Howard agrees with Howie, saying that while the group is fantastic, they need to change the energy up, since it can't always be so frantic. Heidi disagrees, however, saying that her face is hurting from smiling so much. Mel B feels that this group has changed it up a bit, and loudly shouts down Howard when he tries to interrupt. "You gave it your all. You really did," she tells the group. And I'd be hard-pressed to disagree.

But what did you think of Baila Conmigo?

Watch the performance video below: