Nineteen-year-old pop star Justin Bieber took to twitter on Christmas Eve to announce his retirement. But additional tweets left fans wondering exactly what that means. | More Info

Justin Bieber tweets 'retirement' announcement

AP

Nineteen-year-old pop star Justin Bieber took to twitter on Christmas Eve to announce his retirement. But additional tweets left fans wondering exactly what that means.

Justin Bieber tweets 'retirement' announcement

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