Say what you want about Justin Bieber, but there's no denying his popularity.
The pop star is the most-followed celebrity -- not to mention person -- on Twitter, recently becoming the first person on the social media site to crack the 40 million-follower mark, according to a report from Mashable.com.
— Justin Bieber (@justinbieber) June 4, 2013
According to Mashable, Bieber had 40 followers in September of 2009, and that number increased to 500,000 by November of 2009, five million by September 2010, 10 million in May of 2011, 20 million in April 2012, 30 million in Novmeber 2012.
As of Wednesday afternoon, Bieber had 40,054,122 followers.
According to Mashable, other celebrities/public figures/entities with big follower totals include:
Lady Gaga (37.9 million), Katy Perry (37.4 million), Barack Obama (32.2 million), Rihanna (29.8 million), Taylor Swift (28.6 million), YouTube (28.6 million), Britney Spears (27.6 million), Justin Timberlake (21 million) and Shakira (20.8 million).