A disease in which one is obsessed with the pop sensation Justin Bieber. Currently a cure is being developed, and will be widespread once the pop star hits puberty.
YO! IS THAT JUSTIN BIEBER?
YES! OMG! I think I'm infected with Bieber Fever!
*Justin Bieber Hits Puberty/Cure is released*
YO! IS THAT JUSTIN BIEBER?
WHO?
5👍 6👎