Taylor Swift has opened up about her success, claiming that it "never freaks her out" that she has become so popular.

Speaking to Vogue, the 22-year-old however admitted that because she is so pleased with how her life and career is going, she often wonders how it can all be real. She said:

"This is what I've wanted to do my whole life. It never freaks me out. Never. Ever. But you know what does freak me out? When is the other shoe going to drop? I am so happy right now. So I am always living in fear. This can't be real, right? This can't really be my life."

She also spoke of the risks of being complacent when on top of the music industry, stating that 'nobody likes it' when stars get lose enthusiasm or become "mouthy". She said:

"The stakes are really high if you mess up, if you slack off and don't make a good record, if you make mistakes based on the idea that you are larger than life and you can just coast. If you start thinking you've got it down, that's when you run into trouble - either by getting complacent or becoming mouthy. And nobody likes that." 

Watch the video for Taylor Swift's 'Ours' below: