On 5 March 2020, Sea Urchin was a guest on RVNG Intl. Presents Friends & Fiends. Sea Urchin has been played over 40 times on NTS, first on 13 October 2016. Sea Urchin's music has been featured on 38 episodes.

Sea urchin are Leila Hassan and Francesco Cavaliere, Sea Urchin, Egyptian-Austrian artist Leila Hassan’s collaborative project with Francesco Cavaliere, also performs in their American debut. Exploring a unique blend of poetry and dub music, their practice modulates sine waves, tapes, and electroacoustic devices while turning fluorescent minerals, mirrors, and materials into ever-changing projections. The duo began in 2011 with the creation of “dragon water music…