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.