Yes I'm in the building
No I own the company

from Childish Gambino – What The Fuck Are You? (Colouring of Pigeons) Lyrics on Rap Genius

Meaning

This plays on the famous expression, “Elvis (or another famous person) is now in the building”.
Gambino compares his fame to those who were introduced like that.
He then continues to go even further than that, saying he’s not only in the building, but he owns it.

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