Leaked in London is a live EP that was recorded by Fall Out Boy on January 29, 2007. It was brought up because the band's fourth album, Infinity on High, was leaked onto the internet on January 19, 2007, three weeks before the album's release. The EP could be downloaded from the band's website between Tuesday, February 6, 2007 and Tuesday, February 13, 2007 using the CDPass software along with inserting a physical copy of Infinity on High into the CD-ROM drive of one's computer.