guy when we talk about music, have come to understand that nigeria  got prefessional Musician, so i want to ask what makes man or a lady professional Soloist or Singer.

I was listening to Daina Rose of recent and i browse through the song checking some informations on the song she sang and i discoverd that most of the song she sang are composed by someone else, and what she does is to flow with lyrics

Aboard 100% of the Singers there by lyrics and sings,  in nutshell Nigerians really compose songs,  UP Nigerians, 

But in your own point of view, what really makes someone a Prefessional Singer ??