I samme årti opstod en fusionsgenre, som kaldes[[deathcore]]. Deathcore indarbejder elementer af [[death metal]], [[hardcore punk]] og [[metalcore]].<ref>[{{AllMusic|class=album|id=r704417|pure_url=yes}} allmusic.com] Alex Henderson: "What is deathcore?{{nbsp}}... it's essentially metalcore{{nbsp}}... Drawing on both death metal and hardcore{{nbsp}}..."</ref><ref>[http://www.lambgoat.com/albums/view.aspx?id=2517 lambgoat.com] "This is deathcore. This is what happens when death metal and hardcore, along with healthy doses of other heavy music styles, are so smoothly blended{{nbsp}}..."</ref> Deathcore indeholder death metal [[riff]]s, hardcore punk [[breakdown]]s, growling og skingre vokaler.<ref name="Cosmo Lee">{{cite web|last=Lee|first=Cosmo|title=Doom|url=http://www.allmusic.com/album/r854978|work=[[AllMusic]]|publisher=[[Rovi Corporation]]}}</ref><ref>{{cite web|last=Marsicano|first=Dan|title=Rose Funeral – 'The Resting Sonata'|url=http://heavymetal.about.com/od/cdreviews/gr/rosefuneralrest.htm|publisher=[[About.com]]|access-date=19. november 2022|archive-date=14. marts 2012|archive-url=https://web.archive.org/web/20120314093608/http://heavymetal.about.com/od/cdreviews/gr/rosefuneralrest.htm|url-status=dead}}</ref> Deathcore bands omfatter blandt andre [[Whitechapel]], [[Suicide Silence]], [[Despised Icon]] og [[Carnifex]].<ref name="Dawn of the Deathcore">{{cite journal |author=Wiederhorn, Jon |title=Dawn of the Deathcore |journal=[[Revolver (magazine)|Revolver]] |issue=72 |pages=63–66 |publisher=[[Future US]] |issn=1527-408X |url=https://books.google.com/books?id=tPkDAAAAMBAJ&q=deathcore&pg=PT62 |date=september 2008 }}{{Dødt link|date=maj 2023 |bot=InternetArchiveBot |fix-attempted=yes }})</ref>
Musik