Description:Lady Gaga joined Twitter way back in 2008, and it?s taken until now to set a new record for the social networking site.
Lady Gaga has become the first Twitter user to reach 20 million followers. She has surpassed Justin Bieber, who is trailing behind with 18.1 million followers.
Since overtaking Britney Spears as the most-followed person on the website in August 2010, Lady Gaga has held onto the top spot.
And Gaga is way ahead of her fellow singers Katy Perry, who has 15.5 million followers, as (1:02)