Brazilian soccer star Kaka, who plays for Real Madrid, is about to become the world’s first athlete to gain 10 million followers on Twitter. Kaka’s teammate Cristiano Ronaldo is the second-most followed athlete on Twitter with under nine million followers, and Shaquille O’Neal is the third most popular with 5.5 million followers.  Overall, Kaka is 17th on the list of most popular Twitter users. Lady Gaga and Justin Bieber are the top two tweeters, with more than 20 million followers each.

Brazilian soccer star Kaka, who plays for Real Madrid, is about to become the world’s first athlete to gain 10 million followers on Twitter. Kaka’s teammate Cristiano Ronaldo is the second-most followed athlete on Twitter with under nine million followers, and Shaquille O’Neal is the third most popular with 5.5 million followers.

Overall, Kaka is 17th on the list of most popular Twitter users. Lady Gaga and Justin Bieber are the top two tweeters, with more than 20 million followers each.