Lady Gaga has become the first person to attract 20 million followers on Twitter, blasting through that landmark number on Saturday, March 3.

According to Mashable, Gaga topped fellow pop icon Britney Spears in August of 2010 to become the most-followed person on Twitter. Currently, Spears has 13.5 million Twitter followers - roughly 6.5 million less than Gaga.

While Spears occasionally posts personal tweets, her account is largely maintained by her management team. Gaga has claimed to personally maintain her Twitter account and regularly uses it to interact with fans, share original pictures and make announcements. After passing Spears, Gaga then dubbed herself the “Queen of Twitter,” and has retained the title ever since.

The top 5 most-followed people on Twitter are all musicians. Lady Gaga (20 million followers), Justin Bieber (18 million followers), Katy Perry (15.7 million followers), Shakira (14.5 million followers) and Rihanna (14.4 million followers) top the Twitter charts.

While Bieber tweets much more often than Gaga does, statistics from twittercounter.com suggest Gaga’s Twitter crown isn’t in any immediate danger of being overtaken by Bieber. Gaga’s daily Twitter growth rate is consistently higher than Bieber’s - keeping her lead safe.