This is the proof that I am not wrong about the purpose of this site.
Music exists every time and every where. Music could also influences people's feelings. It could make you happy, sad, angry, astonished, and many other feelings. Not only feelings, but the way you think. Hyper music makes you move all and about, while soothing music makes you wanna sit down and relax.
For singers and producers, music is a media to express your feelings. Dancing is a media to express your feelings towards the music... I think.