Benny Andersson writing their number-1 hit "Sunny Girl" on February 10, 1966. "Sunny Girl" was released in March of that year and reached number 1 on both Kvällstoppen and Tio i Topp. The follow up "Wedding" was a collaboration between Andersson and lead singer Svenne Hedlund. This song was released in May of that year and reached number 1 on both charts as well. However, these two releases also led to some disputes by band members; these two recordings were unlike anything they'd previously recorded. The sound was soft, compared to the rhythm and blues sound that dominated their earlier singles. The Hep Stars had at the time changed their live repertoire as well, due to Hedlund breaking his foot, requiring him to sit still on a chair on stage. As a result of this, the group had begun incorporating slower songs into their setlist, ditching "Whole Lotta Shakin' Goin' On", which they'd frantically closed every show with. They had now also heard Vreejswijk's rendition of "I natt jag drömde något som", and began playing the song live. Unlike previous renditions, both in Swedish and English, is that the Hep Stars' version of it is electrical, featuring Janne Frisk playing electric guitar while Andersson is playing the Hammond B3 organ. So on the night between August 22–23, 1966, the group entered Phillips Studio in Stockholm, Sweden, successfully recording the song. Beyond the Swedish rendition of the song, the Hep Stars would also go on to record an English rendition of the song as well. The vocals were also taped during the night between August 22–23. Both of these versions have an identical backing track which were then sung in the respective languages. The only difference between the Swedish and the English renditions is that due to the Swedish version only being put out as a single, and not on an LP record, it was never mixed to stereo, whereas the English rendition exists in both mono and stereo versions. The Swedish rendition would be released as a single the following month, while the English version would be included on their second studio album The Hep Stars in December of that year. Release The band did not agree on releasing the song, as it further strayed the band away from their roots. However, they decided to release it anyway. The single was released in September 1966 by Olga Records with the