They released the albums My Friends all Died in a Plane Crash in 2007 and Where the Oceans End in 2010, which were defined by dual lead vocals from both, and by its coupling of mostly upbeat-sounding music and very dark lyrics.

It proved to be an international commercial and critical success[2] selling over 150,000 copies and certified platinum in France.

In 2012, Cocoon entered a hiatus, due to the duo being tired after touring extensively, and wanting to focus on other projects.

During this hiatus, Daumail started to write songs while at the hospital, during his and his family's stay due to his son being born with cardiac problems.

The album, Welcome Home, featuring Matthew E. White and Natalie Prass, was released in 2016 to similar commercial and critical success.