Montero Lamar Hill, ___ Lil Nas X (3)

I believe the answer is:

aka

(Other definitions for aka that I've seen before include "Notation indicating alternative identity" , "Also called (abbrev.)" , "Notation with initials indicating alternative name" , "Notation indicating alias or other name" , "Using the byline" .)

I've seen this clue in the Universal.

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