On February 4, 2013, Fall Out Boy unexpectedly announced their return and became Trohman's primary music focus. April 12 of the same year, the band released a new album entitled, "Save Rock and Roll," a new song, "My Songs Know What You Did in the Dark (Light Em Up)," and dates for a new tour. The band played their first show in over three years on the night of February 4 in Chicago. 'Save Rock and Roll' peaked at No. 1 on the "Billboard" 200, selling 154,000 copies in its first week, becoming the band's 4th consecutive top 10 album. The band toured heavily throughout 2013 and 2014 on the album, selling out arenas worldwide with bands like Paramore and Panic! at the Disco In October 2013, they released a new EP, "PAX AM Days" which was an homage to the classic punk music the band grew up on. The entire EP was recorded in two days with producer Ryan Adams.