Beliebers celebrate 9 years of Justin Bieber since YouTube debut

Beliebers are taking to Twitter to praise the day that Justin Bieber made his YouTube debut with the hashtag #9YearsofKidRauhl.

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The hashtag is a throwback reference to Bieber's YouTube channel, named after his dad's interest in a series of fantasy novels. Fans online are using this to commemorate his transformation from YouTube child sensation to thrill-seeking pop chart-topper.

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Read a few of the Twitter reactions below. Revisit Justin's 2015 Billboard cover story here.

Check out more Justin Bieber in the gallery below!

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