19 most powerful people on Twitter

19. Ashton Kutcher

19. Ashton Kutcher

No. 18 Selena Gomez

No. 18 Selena Gomez

No. 17 Kaka

No. 17 Kaka

No. 16 Cristiano Ronaldo

No. 16 Cristiano Ronaldo

No. 15 Twitter

No. 15 Twitter

No. 14 Ellen Degeneres

No. 14 Ellen Degeneres

No. 13 Justin Timberlake

No. 13 Justin Timberlake

No. 12 Oprah Winfrey

No. 12 Oprah Winfrey

No. 11 Nicki Minaj

No. 11 Nicki Minaj

No. 10 Kim Kardashian

No. 10 Kim Kardashian

No. 9 Shakira

No. 9 Shakira

No. 8 YouTube

No. 8 YouTube

No. 7 Taylor Swift

No. 7 Taylor Swift

No. 6 Britney Spears

No. 6 Britney Spears

No. 5 Barack Obama

No. 5 Barack Obama

No. 4 Rihanna

No. 4 Rihanna

No. 3 Katy Perry

No. 3 Katy Perry

No. 2 Justin Bieber

No. 2 Justin Bieber

No. 1 Lady Gaga

No. 1 Lady Gaga