In February 2011, The Pains of Being Pure at Heart announced that the album would be titled
Belong. On March 10, 2011, the full album was made available to
stream on the band's website.
Belong was officially released on March 29, 2011, by
Slumberland Records. and "Belong" on March 7, 2011. A third single, "The Body", was released on July 25, 2011. The Pains of Being Pure at Heart performed "Heart in Your Heartbreak" on the March 23, 2011 episode of
Late Show with David Letterman. In April and May 2011, the band embarked on a tour of the United States in promotion of
Belong, on which they were supported by the musician
Twin Shadow. Throughout the rest of the year, they toured Europe and the United States. In 2012, the band performed in Australia, New Zealand, and Singapore for the
St Jerome's Laneway Festival, and toured Asia. On April 21, 2012, the band released
Acid Reflex, a four-track
EP consisting of remixes of songs from
Belong, for
Record Store Day. ==Critical reception==