FernandoS is the musical collaboration of Fernando Siqueira and Fernando Grostein Andrade, combining music and visual storytelling. Their debut EP, FernandoS, released by Virgin Records in 2024, blends experimental pop with orchestral elements. After a sold-out tour in Brazil, they presented Necklace, an experimental musical film screened at festivals and accompanied by live performances at venues like Whisky a Go Go. They have collaborated with producer Fernando Garibay (Born This Way) and cellist Jaques Morelenbaum. They also composed and produced the soundtrack for This is a Test, a NASA-commissioned short film directed by the duo that was physically sent to Mars and then transmitted back to Earth via laser, setting a record for deep-space broadcast. FernandoS explores new forms of expression by merging music, film, and live performance.