Beyonce and Keyshia Cole look similar and sound alike when they sound similar. What you think?

Beyonce Knowles is from Houston. Keyshia Cole is from Oakland. They look a little bit similar in appearance with the caramel brown skin & hair, along with their singing voices, they sound similar, but Beyonce's voice is an octave deeper than Keyshia's. I think it is interesting how some people have similar facial features to the point of almost looking so alike like twins, but they are really different people: Kany West and Sean "Puffy" Combs is another example.