Keyshia Cole is beautifulblack singer, with strong voice.
Her songs are to attract the younger audience, therefore the simpler lyrical themes.
I loved you boy, but you sleep with others, so I dont love you anymore, I am worth of more ... and so on... and so on (thats what Keyshia Cole advises her fans to do )
Someone who has managed to become successful in spite of their troublesome background.
The most successful person in a highly dysfunctional family.
If someone who you knew came from a rough life, managed to become successful and a positive influence in society, you would say that they did a Keyshia Cole.
If you feel like your family is always bugging you for money or material goods because they know or think you have the means to do it, you may say that you feel like the Keyshia Cole of your family.