Jimmy Kimmel Runs Down The Evolution Of Justin Bieber

01/24/2014 09:16 am ET | Updated Jan 24, 2014

How did Justin Bieber go from a "sweet little guy with a guitar" to a "bag of douche" in only 7 short years? Check out Jimmy Kimmel as he goes year by year to explore the evolution of Justin Bieber, and what he might turn into if he's not careful.

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Justin Bieber through the years

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