Serbian police officers on horses patrol around the Belgrade Arena, before Bosnian pop singer Dino Merlin's concert, in Belgrade, Serbia, Friday, Nov.25, 2011. This is the first concert in Belgrade ... more 
Serbian police officers on horses patrol around the Belgrade Arena, before Bosnian pop singer Dino Merlin's concert, in Belgrade, Serbia, Friday, Nov.25, 2011. This is the first concert in Belgrade after more than 20 years, after breakup of Yugoslavia. Serbian ultra-nationalists called Serbian fans to boycott the event. (AP Photo/Darko Vojinovic) less 
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Associated Press | Photo By Darko Vojinovic
Fri, Nov 25, 2011 5:00 PM EST