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It’s now official: Farrah Abraham is out of Teen Mom OG.

And Mackenzie McKee, formerly of Teen Mom 3, is in.

Rumors that McKee will be taking over for Abraham as a series regular began circulating not long after Abraham got fired by MTV.

While the reasons for her dismissal are subject to debate, what we can say for certain is that her replacement has quite a history too.

The new OG cast member isn’t all that new … nor has the Oklahoma native’s life been without its share of twists, turns and tumult.

Scroll down to get to know the real Mackenzie McKee.