Leaked in London is a live EP that was recorded by American rock band Fall Out Boy on January 29, 2007. It was released in response to the band's third album, Infinity on High, being leaked onto the internet on January 19, 2007, three weeks before its official scheduled 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.