The kids came; Sam received the kids as usual and he is trying his best to do what he needs to without blowing his top off. These kids already knew that Sam is already being a bit disturbed by all of this commotion. They knew that he is not in the best of his shape and they also knew that he is Sam, the streets are currently discussing.
So, they also didn't try to bring up the matter and just stayed for their studies and left when they need to.
But that day, the attendants that were escorting the kids didn't know the whole situation properly and they are currently discussing the song outside.
From their words, Sam learned a few things. The first thing is, the number of singers increased. There are around a dozen singers in the city occupying different areas and they are all singing this one song.
They are not busking and they are definitely not thinking of getting noticed by someone rich. They are just singing this one song.