"Wake Me Up When September Ends" is a song by American rock band Green Day. It was released as the fourth single from their seventh album, American Idiot. The single peaked at number six in the United States, becoming Green Day's second Top 10 single. It also peaked at number eight in Canada and the UK, while making number thirteen in Australia. "Wake Me Up When September Ends" had sold 1,652,000 copies as of May 2010, and was the second highest selling single in the U.S. from American Idiot, behind only the multi-platinum "Boulevard of Broken Dreams".
There was once much debate regarding the meaning of this song, one of the most common initial beliefs being that it was about the events of 9/11. In the liner notes, the song is dated September 10, and it is track 11 on the album. However, Billie Joe Armstrong has clarified that the song was written as a memorial to his father, a jazz musician and truck driver, who died of esophageal cancer in 1982 when Armstrong was only 10 years old. In the live DVD Bullet in a Bible, Billie Joe started crying during the performance of the song. Billie stated, "I tried to fight it, but singing that song on stage and having 60,000 people singing it...