Dead by April is a Swedish metalcore band from Gothenburg, formed in February 2007 by Pontus Hjelm and Jimmie Strimell. The current band lineup consists of Pontus Hjelm (guitars/keyboards/programming/clean vocals), Christopher Kristensen (unclean vocals), Marcus Wesslén (bass/backing growled vocals) and Marcus Rosell (drums). Despite many line up changes throughout their career, both Marcus Wesslén and Pontus Hjelm have remained consistent since their debut album.

Source: Wikipedia (https://en.wikipedia.org/wiki/Dead_by_April)