Fall Out Boy is an American rock band from Wilmette, Illinois, (a suburb of Chicago) that formed in 2001. The band consists of Patrick Stump (lead vocals, rhythm guitar, primary composer), Pete Wentz (bass guitar, backing vocals, primary lyricist), Joe Trohman (lead guitar), and Andy Hurley (drums, percussion).

Fall Out Boy has won several awards for its album From Under the Cork Tree. Released in 2005, the album has achieved double platinum status after selling more than 2.5 million albums in the United States. In support of the album, Fall Out Boy headlined tours in 2005 and the year before 2007 in the United States, Canada, Japan, and Europe.

In February 2007, the band released Infinity on High to major chart success, reaching #1 on the Billboard 200 and selling 260,000 copies in its first week. The first single, "This Ain't a Scene, It's an Arms Race", reached #1 on the Pop 100 and #2 on the Billboard Hot 100. To promote the album, the band performed at the Live Earth concerts July 7, headlined the Honda Civic Tour through mid-2007, and the band performed at the MTV Video Music Awards on September 9. The band has toured numerous times, most recently on the Young Wild Things Tour with the Plain White T's, Gym Class Heroes, and Cute Is What We Aim For.