BEYONCE KNOWLES named 4th Most Powerful Celebrity this year, Forbes.

1. Oprah Winfrey

2. Lady Gaga

3. Steven Spielberg

4. Beyoncé

5. Madonna

6. Taylor Swift

7. Jon Bon Jovi

8. Roger Federer

9. Justin Bieber

10. Ellen DeGeneres

Complete List here : http://www.forbes.com/profile/beyonce-knowles/