Think you know everything there is to know about Britney Spears? Well you don't! According to the pop princess her self, the public only know about half of all things Britney related. In a recent interview with Popjustice, Britney gets asked how much she feels her fans know about her, and she replied: "I would say half. I can be pretty guarded with my personal life and I've learned that’s okay. Sometimes it’s our secrets that define us"

If you however want to brave beyond those 50 percent, a good start might be to read the full interview here!