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Next time your friend threatens to put up a picture or video of you online, let them. You may just become a bagillionare. 

Countless actors, models and musicians have gained celebrity-status because of their videos on YouTube. 

One of the most popular YouTube success stories is Justin Bieber, who was discovered online by Scooter Braun

You have to see one of his original videos below! He honestly gives Justin Timberlake a run for his money...

And who knew that Kate Upton rose to stardom because of a silly dancing video?! 

Kate was a struggling and aspiring model until one of her gal pals uploaded a video of her doing the "dougie" at a basketball game and that simple video gained that attention of thousands!

See her hilarious video below:

And while we haven't quite forgotten that Grace Helbig got her start on YouTube, she is a prime example of how YouTube transformed her life! She even has her own show on E! now. It doesn't get much better than that! 

To see more stars who got their start on YouTube, click through the gallery below! 

The Grace Helbig Show premieres this Friday, April 3 at 10:30 pm on E!

Follow The Grace Helbig Show on Twitter and Facebook for the latest updates!