Fall Out Boy is an American rock band formed in Wilmette, Illinois, a suburb of Chicago, in 2001. The band consists of lead vocalist and guitarist Patrick Stump, bassist Pete Wentz, drummer Andy Hurley, and guitarist Joe Trohman. The band originated from Chicago's hardcore punk scene and was formed by Wentz and Trohman as a pop punk side project; Stump joined shortly thereafter. The group went through a succession of drummers before Hurley joined. Their debut album, Take This to Your Grave (2003), became an underground success and helped the band gain a dedicated fanbase through heavy touring. Take This to Your Grave is cited as influential on pop punk music in the 2000s.
With Wentz as the band's lyricist and Stump as the primary composer, Fall Out Boy's 2005 major-label breakthrough, From Under the Cork Tree, produced two hit singles, "Sugar, We're Goin Down" and "Dance, Dance". It went double platinum, transforming the group into superstars and making Wentz a celebrity and tabloid fixture. Fall Out Boy received a Best New Artist nomination at the 2006 Grammy Awards. Infinity on High (2007) debuted at number one on the Billboard 200 with 260,000 first week sales. It produced two worldwide hit singles, "This Ain't a Scene, It's an Arms Race" and "Thnks fr th Mmrs". Folie à Deux (2008), was a commercial disappointment and received a mixed response. Following the release of Believers Never Die – Greatest Hits in 2009, the band went on hiatus and the members worked on side projects.
Save Rock and Roll (2013) became Fall Out Boy's second number-one album, and included the top 20 single "My Songs Know What You Did in the Dark (Light Em Up)". The same year, the band released the EP PAX AM Days, consisting of 8 punk-influenced tracks that were recorded during a two-day session with producer Ryan Adams. The band's sixth studio album, American Beauty/American Psycho (2015) peaked at number one on the Billboard 200, and spawned the top-10 hit "Centuries" and the single "Uma Thurman" which reached No. 22 on the Billboard Hot 100.
The band's seventh studio album Mania (2018), also peaked at No. 1, making it the band's fourth No. 1 album and sixth consecutive top 10 album. In 2018, Fall Out Boy also received their second Grammy nomination for Best Rock Album for Mania. On January 18, 2023, the group announced its eighth studio album, So Much (for) Stardust, which is set for release on March 24.