If you've ever watched PBS' 'Finding Your Roots With Henry Louis Gates Jr.,' you've seen many celebrities learn about their ancestry, which brings some pain and others satisfaction.

On Tuesday (Oct. 28), Nas was featured on the show, discovering the facts of a slave owner, Benjamin Franklin Little, that bought his third-great grandmother, Pocahontas, in 1859 -- she was 14 at the time.

The Queens, N.Y., MC was visibly taken aback when seeing the bill of sale -- "a receipt for a human being" -- right in front of his eyes. "They paid $830 for my great, great, great, grandma?" he asked in disbelief. "I got more than that in my pocket right now."

The legendary lyricist also saw a photo of his relatives' slave master and the house and property where they lived. Gates explained the house burned down in the 1960s. Nas contemplated buying the land.

Seeing the photos put many things into perspective for the rapper. "We are starting to put faces to names here," he stated. "This is the face my ancestors looked at everyday. Now I'm looking into their world, now I can see where they walked, what they saw."

Experience Nas' emotional journey to the past above.

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