"Fuck Authority" is a song written and recorded by American punk rock band Pennywise. It was released in July 2001 as the lead single (and only charting single) from the band's sixth studio album Land of the Free?. The song reached number 38 on the Modern Rock Tracks chart.

The music video was directed by Glen Bennett and was released in April 2001. While the video shows the band playing on a stage, it features different scenes of riots and historical places, such as Tiananmen Square.

"Fuck Authority" was banned from airplay after September 11, 2001; the exact reason for this is unclear. However, the Los Angeles radio station KROQ frequently plays the song. Its title is sometimes displayed as "F**k Authority" or simply "F Authority" on some sources and channels, most likely due to objections to the use of the word "fuck".

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