[3][4] Nemo began their interest in music at the age of three, learning to play the violin, piano and drum machine.

[5] At the age of ten, they joined the Biel children's opera and performed in Mozart's The Magic Flute[6] which was later used as inspiration for "The Code".

[9] They found early success in battle rap as a teenager[10] and performed on season three of the Swiss television show Die grössten Schweizer Talente [de], receiving praise from the judges.

[8] In the same year they studied solo singing in jazz and pop at Zurich University of the Arts,[9][18] won the SRF 3 Best Talent prize,[8] and later settled in Berlin to pursue their music career.

[38] Following their Eurovision win, Nemo called on the Swiss government to legally recognise a third gender, after this proposal was rejected in 2022.

[39] When asked in an interview who they would call first after their win, they responded with Beat Jans, Switzerland's justice minister, stating that "we need to have the representation in our politics".

A spokesperson for Jans later stated that the minister had responded and was willing to meet Nemo to discuss the rights of non-binary people in Switzerland.