HDK (Hate, Death, Kill) is a musical project of Dutch guitarist Sander Gommans, best known as member, vocalist and one of the main composers of the now dissolved symphonic metal band After Forever.
Sander Gommans founded the band as a side project of his career as guitarist and vocalist in the Dutch band After Forever in 2005, along with bass player Peter Vink and drummer Arien van Weesenbeek, who is now the drummer for Epica. Gommans' purpose was to produce music more extreme than After Forever's usual symphonic metal, which needed a different output. In 2008 HDK produced its first full-length album System Overload, which was released in 2009 on Season of Mist.
In 2014, HDK released their second album called Serenades of the Netherworld, with a fixed line-up composed of Gommans on guitar and bass, Amanda Somerville and Geert Kroes on vocals, Koen Herfst on drums and Uri Dijk and Erik van Ittersum on keyboards, along with some guest instrumentalists