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 cassettes,” a series of tapes that detail musical relations with objects, writings and textiles. In 2016, KRAAK records released their debut full length album Yaqaza, arabic for “daydream.” Taking on the frame of a magical-realist narrative, the album’s ten songs are dedicated to specific topics, territories and characters: Sicilian salt miners and their muscle mirror glasses, Bolaji Badejo (the first “Alien” actor from 1979), and Cheba Nouria (known as “the Queen of Raï music”) -- an unknown Algerian pop star who recorded some of the most beautiful maghreb disco songs of the 1980’s.