Justin Bieber has become the artist to reach over 2 billion YouTube views.

Over the weekend after his latest music video for festive track 'Mistletoe' reached 27 million views in a week.

To date, the star has racked up 2,004,247,332 views across the video-sharing site.

Lady GaGa beat Bieber to the 1 billion mark back in October 2010, but has now overtaken and now has a lead of 320 million.

Gaga however still remains the most popular person on Twitter with 15 million followers.

Meanwhile, Rihanna comes in third place with 1.7 billion views and is currently the fastest-growing, while Eminem has 1.5bn.

The top 10 music stars on YouTube are as follows:

1. Justin Bieber - 2 billion
2. Lady GaGa - 1.88 billion
3. Rihanna - 1.7 billion
4. Eminem - 1.51 billion
5. Shakira - 1.21 billion
6. Black Eyed Peas - 1.11 billion
7. Britney Spears - 1.01 billion
8. Beyonce - 1 billion
9. Chris Brown - 868 million
10. Michael Jackson - 810 million

Willow Smith and Justin Bieber - live photos