Beliebers celebrate 9 years of Justin Bieber since YouTube debut

5 Best Songs From Justin Bieber's "Purpose"
5 Best Songs From Justin Bieber's "Purpose"

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

With Justin Bieber's Blessing, Charity Choir Edges 'Love Yourself' in U.K. Chart Christmas Showdown

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.

Justin Bieber's 'Purpose' Becomes His Fifth Million-Selling Album in U.S.

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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