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"Chris Brown was causing controversy again by dressing up as a militant wearing Arabic robes, a turban, bullets around his neck and a long beard for Halloween last night (October 31).  The 22-year-old singer posted a picture of himself in costume along with a group of similarly dressed friends in a car park while waving a machine gun on his Instagram page, adding the caption: &amp;quot;Ain&amp;#039;t nobody F**king wit my clique!!!!#ohb&amp;quot; Brown then headed to Rihanna&amp;#039;s Halloween party at Greystones Manor in West Hollywood.   It was recently reported that the former couple are back on again after they were spotted hugging and kissing at a bash in LA. Brown was photographed being hugged by an over-zealous female partygoer as he arrived at the event yesterday evening and seemed to have ditched his gun and beard. Celebrities dress up for Halloween:  "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/showbiz/news/a434998/chris-brown-wears-terrorist-costume-to-rihannas-halloween-party/>