Justin Bieber has reached 8 million Twitter followers, making him the most popular guy on the web. Fans from all over the world sign up for Twitter just to read Bieber’s tweets. Justin Bieber has got to be the most popular guy on the Internet. Justin was also apparently excited about his new accomplishment. The pop star currently has over 8.6 million “Little Monsters” following her. It seems that Gaga and Bieber have been battling online for some time. The pair also virtually duked it out over on YouTube, trying to get their videos to reach one billion views.