Oh Hiroshima is a post-rock band formed in Kristinehamn, Sweden by Leif Eliasson and Jakob Nilsson in 2006. Two friends who met in high school and formed a close friendship. What started off as a solo project became a project between two friends who wanted to create and experiment with the music they loved. After a few months Jakob’s younger brother, Oskar, joined the duo to play bass, but later switched to drums. The three has since been a solid line-up, but it wasn't until 2011 that they found the missing link in the band when Simon Axelsson joined them to play bass.