Buzz·Posted on 21 Jun 2013The 21 Greatest Celebrity Tumbles Of All TimeYou know what's funnier than someone falling over? Someone famous falling over. Here's a countdown of the best.by Sam ParkerBuzzFeed ContributorLinkFacebookPinterestTwitterMail 21. Olly Murs Tap to play GIF Tap to play GIF 20. Robbie Williams Tap to play GIF Tap to play GIF 19. Jennifer Lawrence Tap to play GIF Tap to play GIF 18. Justin Bieber Tap to play GIF Tap to play GIF 17. Drake Tap to play GIF Tap to play GIF 16. Harry Styles Tap to play GIF Tap to play GIF 15. Lady Gaga Tap to play GIF Tap to play GIF 14. Madonna Tap to play GIF Tap to play GIF 13. Father Christmas Tap to play GIF Tap to play GIF 12. Pink Tap to play GIF Tap to play GIF 11. Rihanna Tap to play GIF Tap to play GIF 10. Fidel Castro Tap to play GIF Tap to play GIF 9. Olly Murs (again) Tap to play GIF Tap to play GIF 8. Katy Perry Tap to play GIF Tap to play GIF 7. Kylie. Tap to play GIF Tap to play GIF 6. Beyoncé Tap to play GIF Tap to play GIF 5. Michelle Heaton Tap to play GIF Tap to play GIF 4. Kelsey Grammer Tap to play GIF Tap to play GIF 3. Michelle Williams from Destiny's Child Tap to play GIF Tap to play GIF 2. Naomi Campbell Tap to play GIF Tap to play GIF 1. Jedward Tap to play GIF Tap to play GIF