"I'm really loving collaboration right now," said Swift. "I see it as a bit of an apprenticeship. I want to be around people who love writing songs and have done it for years. Every time I'm in a studio I'm learning, like how to build a drum track, and getting a new perspective on things. It's so thrilling to keep learning on your fifth album.

"As soon as [an album] comes out I'm figuring out what the next one will be," she continued. "It's gotten to the point where each one is a reinvention, which is what I like best. I like it when it sounds new and people don't know where you're going to go next."