Someone started singing along with the piano music:
"Buddy, you're a boy, make a big noise
Playing in the street, gonna be a big man someday"
Others joined in. They even started stomping their feet and clapping their hands in the same beat as the music.
"We will, we will rock you!!!"
Soon, everyone was singing along to the catchy song. The crowd was no longer mere spectators but active participants of the performance instead. More people gathered; their attentions caught by the energetic spectacle. They squeezed their way into the already packed crowd and became even more amazed upon seeing that the one playing the popular rock music on the piano and stimulated all these people was a beautiful, elegant and classy young woman.
It was like being in a concert. Everyone was having so much fun!