Obrad Savic targets the next generation with a message about breaking accepted Balkan stereotypes.
Despite Russian and Serbian opposition, UN Secretary-General Ban Ki Moon said Friday the UN would gradually cede its role.
The document, signed Sunday, is seen as key to stability. But many issues remain unresolved.
A symptom of Westernization: Serbs read and write as well with the Latin alphabet.
Serbia, 2007 winner thanks to Balkan bloc, hosts Saturday's final.