In early 2011, the band played the Opera House as part of JUNOFEST with fellow Toronto band Die Mannequin and Montreal band Ariel. On May 21, 2011, The Birthday Massacre announced that "Imaginary Monsters" would be released on August 9, 2011, through Metropolis Records. Later in the summer it was announced that the band would be the support act for an upcoming North American tour by Japanese metal band Dir En Grey beginning in December. On August 4, 2011 the band released the "Imaginary Monsters" EP to listen to in full on their Myspace profile. "Imaginary Monsters" includes remixes of tracks from their 2010 album "Pins and Needles", the remixes made by Combichrist, SKOLD, Kevvy Mental & Dave Ogilvie, Tweaker, and Assemblage 23. The EP also features the video for "In The Dark". On November 29, 2011, the band embarked on a small headlining tour across Southeastern United States and on December 4, 2011, joined as the supporting act for Dir En Grey.