Happy 18th Birthday, Justin Bieber!
It's hard to believe it's been four years since singing sensation Justin Bieber landed on our radar. The teen heartthrob was discovered back in 2008 when he was seen on YouTube by Scooter Braun, which would lead to him to be introduced to Usher and signed to their record label. Since then, his career has grown in leaps and bounds — two platinum records and a slew of awards under his belt, as well as his debut film, Never Say Never, which documents his rise to stardom. We can't forget Disney cutie Selena Gomez, Bieber's girlfriend of over a year, the two regularly spotted out and about together and on the red carpet. To celebrate Justin's 18th birthday today, we're taking a look back at their cutest couple moments.