When the show begins, the cast and band run on stage - they wave at the audience, set up the stage, and get settled. An idea is immediately presented that there is no true fourth wall here.
Then, Andre walks on stage, and he commands quite the stage presence. He walks around, interacts slightly with some of the actors. He moves to the front of the stage, unbuttons his suit jacket, and places his hands on his hips with a big smile. As normal as this sounds, the audience kind of holds their breath during this sequence, it feels electric. The audience erupts into applause as he stands there and nods (his facial expressions encourage the applause, and he's gotten it all 3 times I've seen it).
He turns to the cast & band and says, "Alright?" They respond, "Alright."
He then turns to the audience and asks again, "Alright?" The audience replies, "Alright."
Finally, he notions to the band, and the music begins.