Justin Bieber On His Insomnia

Canadian pop star Justin Bieber tells Vanity Fair magazine that sometimes he struggles to fall asleep.

The 16-year-old says his "mind races" at night and it happens because he starts to "think about all the things I didn't have time to think about during the day - like family and God."

Bieber says he doesn't have time to think about this important things because "you just get caught up" during the days hectic activities.