9. Piece Of Me, 2007
Percent of Fan Votes: 3%
Fun Fact: 2007 was a tough year for Britney, but Spears turned the tables on her personal dramas and used them as fodder for the much-discussed "Piece of Me" video. The $500,000 clip was shot all in one day, and was well-received by fans and critics alike. It went on to win Video of the Year at the 2008 Video Music Awards.