Their second studio album From Under the Cork Tree was released in May 2005 to great commercial success, peaking at number nine on the United States Billboard 200 and being certified double platinum by the Recording Industry Association of America (RIAA).

[7][8] Fall Out Boy's third studio album Infinity on High was released in February 2007, debuting at number one on the Billboard 200 with 260,000 first week sales and being certified platinum by the RIAA.

[5][6] "This Ain't a Scene, It's an Arms Race", the album's lead single, peaked at number two on the Billboard Hot 100 and also hit the top ten in countries such as Canada, New Zealand and the United Kingdom.

The band released their fourth studio album Folie à Deux in December 2008; it debuted at number eight on the Billboard 200 with 149,000 first week sales and was certified gold by the RIAA.

[12] The group announced the end of their hiatus four years later, releasing the single "My Songs Know What You Did in the Dark (Light Em Up)"; it peaked at number thirteen on the Billboard Hot 100 and went six-times platinum.