split up the competing countries into five different pots based on voting patterns from previous contests, with countries with favourable voting histories put into the same pot. On 26 January 2015, a special allocation draw was held which placed each country into one of the two semi-finals, as well as which half of the show they would perform in. Switzerland was placed into the second semi-final, to be held on 21 May 2015, and was scheduled to perform in the second half of the show. Once all the competing songs for the 2015 contest had been released, the running order for the semi-finals was decided by the shows' producers rather than through another draw, so that similar songs were not placed next to each other. Switzerland was set to perform in position 14, following the entry from Sweden and before the entry from Cyprus. In Switzerland, three broadcasters that form SRG SSR aired the contest. Sven Epiney provided German commentary for both semi-finals airing on SRF zwei and the final airing on SRF 1. German commentary was also provided by Peter Schneider and Gabriel Vetter for the final on Radio SRF 3 and via dual channel audio on SRF 1. Jean-Marc Richard and Nicolas Tanner provided French commentary for the second semi-final on RTS Deux and the final on RTS Un. Clarissa Tami and 2008 Swiss Eurovision Song Contest entrant Paolo Meneguzzi provided Italian commentary for the second semi-final on RSI La 2 and the final on RSI La 1. The Swiss spokesperson, who announced the Swiss votes during the final, was Laetitia Guarino. Semi-final Mélanie René took part in technical rehearsals on 14 and 16 May, followed by dress rehearsals on 20 and 21 May. This included the jury final where professional juries of each country, responsible for 50 percent of each country's vote, watched and voted on the competing entries. The Swiss performance featured Mélanie René in a long ivory dress with a transparent black cape and standing on a pedestal at the centre of the stage. René was flanked by four backing vocalists who wore black costumes with fringes and played large drums. The LED screens displayed forest scenery. The performance also featured the use of a wind machine, CO2 jets blowing from the ground and "falling star" pyrotechnics. The backing vocalists that joined Mélanie René were: Anissa Condemi Montemouhin, Idyl Nahla, Flavie Crisinel Cheuwa and Natacha