This is getting serious, folks.
At first, we thought Justin Bieber Fever only hit teenagers. But then an adorable two-year old came down with a case of the disease.
Now, the it's spread to the elderly, as evidenced by the following video. In it, a grandmother claims she's only singing a Bieber hit because her relative is holding her hostage. She doesn't exactly seem to mind, though, does she?
Are you suffering from Bieber Fever? If so, ogling these photos of the young star might help satisfy your cravings. Good luck!