mori, the stage name of Martín Moreno Rivera, is one of the founding figures of rusia-idk. Emerging from Spain's bedroom pop scene, he became the collective's original frontman during its formative years. At the end of 2025, he returned solo with the double single ‘Lovers to Strangers / DANCE’, marking his evolution towards a new lo-fi crooner sound. His comeback was covered by Clash Magazine and The Line of Best Fit. In February 2026, mori released his debut album ‘El Niño Bola’.