From PerezHilton.com:

Macedonian pop star Tose Proeski passed away on Tuesday after suffering a horrible car crash in Croatia.

The singer, whose fan base rivals that of Madonna in the Balkans, died almost instantly when his car collided with a truck near the town of Nova Gradiska.

Proeski was the most beloved teen pop idol in Macedonia, even representing his country in the Eurovision song contest in 2004. He was also a UNICEF ambassador.

Wednesday has been called a day of national mourning in Macedonia.