Worlds Collide is the fourth studio album by Swedish metalcore band Dead by April. It was released on 7 April 2017 through Spinefarm and Universal. It is the first album to feature guitarist/songwriter Pontus Hjelm on co-lead vocals and the last album to feature former unclean vocalist Christoffer "Stoffe" Andersson as he left the band shortly after the album's release. The album debuted at number 8 on the Swedish albums chart. On 1 September 2017 the band released an EP titled Worlds Collide , which contains four tracks from Worlds Collide with the original harsh vocals replaced with harsh vocals by returning member Jimmie Strimell. On 20 October another EP, called Worlds Collide , was released, containing acoustic versions of 4 songs from the album.

Let the World Know is the third studio album by Swedish metal band Dead by April. The album is the first without former vocalist Jimmie Strimell who had since been replaced by Christoffer Andersson, current member of What Tomorrow Brings. The album is also the last to feature original drummer Alexander Svenningson and clean vocalist Zandro Santiago, who both left in 2014. Three of the songs on the album, "As a Butterfly", "Beautiful Nightmare" and "Hold On", were re-recorded in 2019 with Jimmie Strimell and Pontus Hjelm on lead vocals and Marcus Rosell on drums.