Blanck Mass has been a regular guest, first appearing on 19 April 2013 and most recently on 14 August 2019. Blanck Mass has been played over 30 times on NTS, first on 15 March 2013. Blanck Mass's music has been featured on 37 episodes.

Blanck Mass is the side project of British musician Benjamin John Power, otherwise known as half of the experimental/noise duo Fuck Buttons. His self-titled debut album, which was recorded and produced by himself in his London apartment between the summer and winter months of 2010, was released by Mogwai's Rock Action label on June 21, 2011.