The Song "Vidovdan" First Appeared On The Album Of One Of The Most Famous Folk-Singers In Serbia Gordana Lazarevic. Vidovdan St. Vitus' Day Is One Of The Most Important Religious Holidays In Serbia And It Has A Historical Importance To Serbia Because On June 28 1389 The Battle Of Kosovo Took Place And Serbia Fought Against The Ottoman Empire. The Text Of The Song "Vidovdan" Refers To That Battle.