To be clear, I actually think Taylor Swift is respectably talented, and she's particularly an extremely good showman with a sharp ear on her culture. And I also think she's a fairly good actress. But I keep getting the impression that if she ever got married, her career risked being over.
Fortunately for her, she's still young.
Aspiring writers, take note. Quips aside (sort of), ultimately this all reinforces the Writers Dictum -- write what you know.