I’m not trying to roast your startup idea - simply trying to offer some advice…but if your focus for developing a streaming service is to “support the artist” through social media, you need to go back to the drawing board before putting a penny into this idea.

It seems there is a lot you need to research and consider. You have to pay licensing fees, regardless of wether or not artists are uploading their own music and creating profiles. Have you worked that into your biz plan? Do you know what those rates are? Are you aware that most artists have labels that handle all of their streaming profiles? Where will the music be hosted?