Jegulja was formed in 2013 when Jure Gašper (also guitarist for the band called Uroš) and Rok Večerin Wuko (ex-drummer for the bands Dawn Patrol and Lene Kosti) invited Jan Kozel (ex-guitarist for the band Carnaval) to a jam. After a few months the band received an invitation to play their first concert. Getting ready for their debut appearance Jegulja prepared a draft set of songs. Later in October 2014 five tracks from the set appeared on their demo recording Finesse & Mud.
Jegulja had a few months hiatus lasting from the summer of 2014 until the early January 2015 when Domen Urh joined the band, replacing their former drummer.