 "Vem ska jag tro på" was released in autumn 1987 and became Di Leva's breakthrough album.The album was produced in the cellar of record company Mistlurs Records at Roslags Street with 2nd producer Kaj Erixon.On the album's first track, "I morgon", new tone atmosphere and new sound effects can be heard, with Johan Vävare performing using oscillator and keyboard sounds.