Looking for an artist part 2

I have decided to give my artist a unique selling point. Therefore I have decided it will be a girl duo. One of which predominately will do the singing and the other who will be the instrument player and sing a bit. A duo is a good selling point because they will make audiences more curious than with a single artist. And closer attention should be paid to their personalities and styles. For example Jedward , Angus and Julia stone and the veronicas.