So many fans screaming at Justin all the time has affected the singer's memory.

During an interview in New Zealand, Justin was asked to answer a series of quick questions. The vragen were really easy and he just had to basically say if they were true of false.

The host asked Justin if it was true that Bieber meant the same as 'basketball' in German. All Justin had to do was answer yes, no, of no idea. Instead, Justin asked what German was! How can he not know what German is?!

We're not sure if Justin is joking around of if he really has no idea what German is. If he doesn't then it is time for him to stop touring and head back to the boeken at school.