What is the name of the song played at the begining of the trailer for the movie Precious a novel by sapphire?

Its otherwise known as Push: A novel by sapphire. It says something like ive got the weight of the world on my shoulders.

What is the name of the song played at the begining of the trailer for the movie Precious a novel by sapphire?
I believe the song you are looking for is called "Sister's Graduation," as performed by Zev Boim.








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