Top 20 Celeb Twits based on followers: 1. Lady Gaga (ladygaga) 2. Justin Bieber (justinbieber) 3. Britney Spears (britneyspears) 4. Barack Obama (BarackObama) 5. ashton kutcher (aplusk) 6. Kim Kardashian (KimKardashian) 7. Ellen DeGeneres (TheEllenShow) 8. Katy Perry (katyperry) 9. taylorswift13 (taylorswift13) 10.Oprah Winfrey (Oprah) 11. Twitter (twitter) 12. Shakira (shakira) 13. Ashley Tisdale (ashleytisdale) 14. 50cent (50cent) 15. Ryan Seacrest (RyanSeacrest) 16. Justin Timberlake (jtimberlake) 17. Selena Gomez (selenagomez) 18. CNN Breaking News (cnnbrk) 19. John Mayer (johncmayer) 20. Mariah Carey (MariahCarey)