from the original songs she "wrote." I'd be willing to wager a hefty penny that she is consistently using ghost writers.
She was after all the first real success of a country label that was a subsidiary of Universal. A multi-billion dollar media empire that is notorious in the music world for creating facades like Miley Cyrus and Nicki Minaj.
I have no evidence that Tay-Tay is a record label pawn other than reading in between the lines. That info is locked away in the Universal vaults. Logic points to the fact that Tay-Tay is playing the role that she is told to play, just like Minaj and Mi-Cy. They play the part, Universal takes care of everything else.