In January of 2015, Sophia Grace put out her very own new rap single, calledBest Friends.

And the rest, as you must already know, is history.

Justin Bieber is among the biggest and most successful pop stars of all time.

Sophia Grace

Screenshot of YouTube

Rebecca Black

In 2011, Rebecca Black and her music videoFridaywent viral for all the wrong reasons.

His debut albumHold On ‘Til the Nightwas released in 2011 followed by his second EP in 2016.

In 2012, he signed a recording deal and went on to open for Taylor Swift in 2013.

Justin Bieber

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It wasn’t long before he was discovered on thevideo sharing siteby a Grammy-nominated record producer in 2010.

She hasn’t signed to any labels, but she still regularly uploads music videos to herYouTube channel.

In the same year, she was discovered by someone in the industry and signed to a label.

A screenshot of YouTube.com.

Rebecca Black

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Soulja Boy Tell ‘Em

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Greyson Chance

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Austin Mahone

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Cody Simpson

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Jenna Rose

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Becky G

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