After releasing their first album entitled Déjeuner sur l'herbe in 2004 on Blow The Fuse Records, Les Breastfeeders embarked on their first east-coast tour in the United States, while appearing on several American College Radio charts[4] all while their popularity in their home province of Québec kept on rising.

[5][6] Although the group's lyrics are all in French, Les matins de grands soirs got great attention from abroad with features and reviews in international publications and sites such as Blackbook Magazine, Spin.com (Artist of the day), NPR[7] and NME.

In France they performed on Fille TV and back in Canada, they composed "Lola The Mermaid",[18] a song for children's television show "Roll Play".

In 2010, the band played at the 2010 Winter Olympics in Vancouver in front of an anglophone crowd who bombarded them with bottles, injuring the lead singer.

[22] They followed up in November with "Trois nuits de chien" b/w "J'étudie mon grec", whose B-side was again a cover, of the 1967 single by Quebec garage rock band Les Hou-Lops.