In 2014, the band was formed on an ambition to write fast, dirty, intimate and violent music. That ambition was expressed in 2015 - 2017 in the form of three EP’s under the title Negativ Psykologi #1-3, and shows in Denmark, Germany, France, Czech Republic and Slovakia. In 2017, Tvivler performed at Roskilde Festival and went on to compose what was to become their debut album EGO.

EGO is an album of courage and defiance. It is an album about relations and relations to self, about knots and inner monstrosities. It is songs in the neoliberal Copenhagen, songs from late modern life, songs about the insides of capitalism, about keeping up without holding on. It is an album of songs about reclaiming life from hopelessness. About wanting and committing to what is important.

All band members have been active on the Danish scene for a long time. Feltheim and Clausen were in the hardcore band Children of Fall and mathrock outlet Obstacles, Burø sang for Lack, and Ogstrup is still active with Town Portal. Throughout these bands the music has always been adventurous, expressive and energetic. Tvivler is the logical continuation of this spirit; it's a punk band with equal love for Blondie and Brutal Truth.

Tvivler is Morten Ogstrup Nielsen (bass), Thomas Feltheim (guitar), Morten Clausen (drums) and Thomas Burø (vocals).