Yesterday was the 7th birthday of the Twitter-world!

Twitter has come quite a long way since it's birth 7 years ago. However, it still adheres to its original practice of only letting you write 140 characters!

For a very long time Lady Gaga held the spot of being the most followed Twitter user. Justin Bieber has long since passed her.

Here are the top followed Twitter users:

1) Justin Bieber

2) Lady Gaga

3) Katy Perry

4) Rihanna

5) President Obama

6) Taylor Swift

7) YouTube

8) Britney Spears

9) Shakira

10) Ellen

Out of all those users Shakira actually follows the least amount of people at 76. Obama follows over 600,000!