Shitmat is the performing name of Henry Collins, a breakcore artist from Brighton. His music is largely based around the Amen break, Gabber, Plunderphonics, jungle and drum 'n' bass.

His music, sometimes referred to as "Mashcore", is known for the humorous use of samples atypical of "serious" Drum and bass artists and deliberate use of clichés. "Agricultural Ardcore" from Full English Breakfest Vol.5 is based around the theme tune to the UK radio soap opera The Archers. The KillaBabylonKutz EP is an album playing on clichés within the ragga-jungle scene, in which every single track is based on the same ragga sample. The Lesser Spotted Burberry EP is a tongue-in-cheek play on the UK's Chav subculture and makes references to brands such as Burberry and Argos that are often associated with it. During live performances, Shitmat himself often performs wearing a Burberry Baseball Cap, further reinforcing the parody.

Like other similar Breakcore acts, Shitmat is something of a crossover artist with people who are not normally associated with Drum and Bass and other genres of Dance Music, such as Heavy Metal.

He is also one of the co-founders of Wrong Music. A collective/record label based in Brighton, UK.