Hatti Vatti has been played on NTS in shows including The Hot Selection, featured first on 12 January 2014. Songs played include Synthesis.

Hatti Vatti (real name Piotr Kaliński) is a Polish electronic music producer from Sopot. In 2013 he released a mini-album entitled Algebra, and a year later his début album called Worship Nothing.

Piotr is also a member of a punk band called Gówno (which literally means "shit").