I think it all depends on where your trying to go with music... The way I see "looks" had a lot to do with davinas success .. I mean she can sing but theres many females that can sing.. Thats also something to keep in mind, you can go a lot further with your voice than any old rapper... Rapping is like a one trick pony... So you can rhyme and stay on beat then what?? .. But singing theres a lot you can do, Im not sure how musically diverse you are but you make any kind of music wether your doing mariachi,r&b,country or doing vocals for a rock band ..