ARE SINGERS FALSE?

Last month I went ,with my mom, to a concert from Pablo Alborán in Barcelona. The concert was spectacular and very emotional. But there was a moment when Pablo Alborán was singing that started to cry a little bit. He cried because these was his last concert in his tour. 

The action from him to cry did the public become excited. This action made me thought and I arrived in a conclusion. Maybe you can think that I'm a numb or bad person but I think that this action was a staging. All the artist did this things? In all his concerts cry? I don't know it. I don't know if Pablo Alborán was been sincere in this moment. But I really think that all was a staging.