Iraq is in the news for all the wrong reasons everyday, but on Sunday, something special happened. Some of the country's best musicians marked international peace day with a performance aimed at unifying the country. Al Jazeera's Imran Khan reports from Baghdad. Subscribe to our channel http://bit.ly/AJSubscribe - Follow us on Twitter https://twitter.com/AJEnglish - Find us on Facebook https://www.facebook.com/aljazeera - Check our website http://www.aljazeera.com/