Guys might be scared to date Taylor Swift because they know if they ever break her heart, there's probably going to be a song about them -- one they're going to be hearing every single time they turn on the radio, an awards show -- everything.
Some people think spilling private details from past relationships and bad breakups is a major "don't," but not her current tour buddy Ed Sheeran.
In a recent interview, Ed said, "I think you sing about what you know. There's nothing worse than singing a song that has no relevance to you, and all the songs she's singing have a deep relevance to her. They're all personal."
With eight new, shiny trophies coming home with her after the Billboard Music Awards, it must be working for her -- so well that Ed is going to try out her style for himself! Ed said his upcoming second album isn't "an album about fame and fortune, it's an album about relationships."
Do you think Taylor and Ed should be singing about their exes? Let us know in the comments below!