Gracia Baur defended her producer David Brandes, also behind Swiss entry Vanilla Ninja, and said she would go to the finals in Kyiv despite complaints from other German singers. Bulgaria's debut was overshadowed by a scandal. The song "Lorraine" by Kaffe was accused of plagiarism. The song sounded too similar to another one released by Ruslan Mainov in 2001. There were also problems in Malta with the electricity supply during the contest, so TV viewers were unable to watch their national selection from the very beginning. There was a controversy regarding the Turkish entry: TRT got a false jury which led to the victory of the song Gülseren, which the 2003 winner Sertab Erener said was not the best choice. There were similar controversies in Macedonia which led to an eventual victory for Martin Vučić. The Ukrainian song had to be changed because it would bring a political message to the people, and EBU stated that no politics could be involved in the contest. The entry for Serbia and Montenegro was also overshadowed by a scandal and an accusation of plagiarism. Portugal's entry, "Amar", had very poor sound quality, with the female singer's microphone failing many times on stage.