Streaming copyrighted music for commercial goals without the consent of the artist, copyright owner, or recording company is illegal.
If you do it anyway, the copyright owner or their representative may take legal action against you, which could result in a lawsuit and fines. This, in turn, may lead to a court order to pay damages or an out-of-court settlement, which could be expensive.
According to the law, you will have to pay for actual or statutory damages of the rights holder.