Lady Gaga makes internet history

Lady Gaga has made history by breaking the 20 million mark on social networking site Twitter.

It means the 'Bad Romance' singer is easily the biggest name on the social networking site, with Justin Bieber coming second with 18 million followers.

The singer currently has 20,149,039 followers on Twitter.

Gaga's online dominance does not stop there - she has more than 48 million fans on Facebook.