Boy Harsher hosted a guest show on 27 February 2019. Boy Harsher has been played over 60 times on NTS, first on 14 July 2016. Boy Harsher's music has been featured on 66 episodes.

Boy Harsher is an American electronic / darkwave duo, formed in 2013, that produces gritty dance beats infused with ethereal vocals, creating a sound that is eerie, intense and incredibly danceable. Gus Muller of Reconss develops the underbelly of sound with minimal beats and grinding synths, where Jae Matthews whispers, screams and chants on top. Together, the music created is somewhere between dance, trance and confessional storytelling. Boy Harsher draws heavily from cinema, theatrics and graphic design to tailor the band's visual imagery; Matthews and Muller both have a background in filmmaking. They have likened the band to the movies Body Heat and Lost Highway, latter of which was directed by David Lynch, a professed influence on the band. Matthews has expressed appreciation for various female vocalists, including Nico, Circuit des Yeux, Alison Lewis of Linea Aspera, Chelsea Wolfe and Zola Jesus, whereas Muller named Sleep Chamber, Suicide, DAF and Yello as early musical influences on Boy Harsher.[4] Gearwise, Muller mostly employs synthesizers and samplers, stating that he "tries and borrows as much [instruments] as he can for recording."On the band's minimal instrumentation, he said: "I’m obsessed with how successful the minimalism is with 80s music. It’s really a masterclass of what can be done with a drum machine and a couple of synths. A "half-functioning" Roland Juno-106 was used extensively on Lesser Man EP; their live set features synth lines sampled into an Akai MPC, as well as backing tracks. The band has amassed a cult following since their formation.