As of 1:30 p.m. ET on January 22, JB had 33,341,843 followers and Gaga had 33,335,261 followers.
According to Gossip Cop, Katy Perry is now third with around 31.5 million followers, then it's Rihanna (around 27.9 million) and President Barack Obama (26.1 million). Imagine if JB just keeps growing this following for another, say, 20 years. Then he could run for president and barely have to do any campaigning to win.
Are you surprised that Justin Bieber is now the most followed person on Twitter?