By Night is an extreme metal act from Falkenberg in Sweden, formed by André Gonzales (guitar), Simon Wien (guitar), and Per Qvarnström (drums) in 1999. After several line-up changes, bassist Henrik Persson joined and stayed, later on singer Christoffer Andersson as well. Two demos were recorded, By Night (2000) and Derelict (2001).In 2002, Christoffer Andersson left and was replaced by Adrian Westin, singer of the band Aggressive Serpent (now called Trendkill).