Dion's potential involvement is significant given she won the competition for Switzerland in 1988.
Despite a video message recorded by Dion for the semi-final rehearsals, Swiss broadcaster SRG SSR stated there are no changes to her potential involvement and they remain in “close contact” with her.
The first semi-final features several contenders, including Dutch singer Claude Kiambe and Swedish group KAJ.
Switzerland already has an act in the final due to Nemo Mettler's win in 2024, along with major financial contributors Italy and Spain.