#BBCtrending: Russia's rebel rockers
29 August 2014 Last updated at 04:39 BST
An amateur rock group claiming to be pro-Russian rebels based in Ukraine have become YouTube sensations.
With more than 1.6 million views for one of their parody videos alone, is this a spontaneous social media phenomenon or an online propaganda coup?
BBC Trending tracked them down for an exclusive interview.
Video Journalist: Greg Brosnan
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