The Halo Effect is a Swedish melodic death metal supergroup formed by former members of In Flames.

[2] The Halo Effect was founded in 2019[3] by five former members of the Swedish metal band In Flames: its founder Jesper Strömblad, early vocalist Mikael Stanne and long-time members Niclas Engelin, Peter Iwers, and Daniel Svensson.

Their stated motivation was to return to the roots of the 1990s "Gothenburg sound" that pioneered the melodic death metal genre.

[4] The band's name references the song "Halo Effect" on Rush's album Clockwork Angels.

[6][7] To support the album, the band toured Europe and the UK with Amon Amarth and Machine Head in September and October.