Gjon Muharremaj, known professionally as Gjon's Tears, is a Swiss singer and songwriter. He was scheduled to represent Switzerland in the Eurovision Song Contest 2020 with the song "Répondez-moi" prior to the event's cancellation. He was internally selected again as the country's representative for the 2021 contest with "Tout l'univers". He finished in third place with 432 points, at the time the best placing for Switzerland since 1993.

Switzerland participated in the Eurovision Song Contest 2021 with the song "Tout l'univers" written by Gjon Muharremaj, Wouter Hardy, Nina Sampermans and Xavier Michel. The song was performed by Gjon's Tears, which is the artistic name of singer Gjon Muharremaj who was internally selected by the Swiss broadcaster Swiss Broadcasting Corporation to represent the nation at the 2020 contest in Rotterdam, Netherlands, after they were due to compete in the 2020 contest with "Répondez-moi" before the 2020 event's cancellation. "Tout l'univers" was presented to the public as the Swiss entry on 10 March 2021.