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"WWE star CM Punk has challenged popstar Chris Brown to a charity &amp;quot;no-holds barred fight&amp;quot;. The professional wrestler first taunted Brown on his Twitter account earlier this week by referencing the singer&amp;#039;s physical assault of ex-girlfriend Rihanna before the 2009 Grammy Awards.   CM Punk wrote to Brown: &amp;quot;I would like @chrisbrown [to] fight somebody that can defend themselves. Me curb stomping that turd would be a #wrestlemania moment.&amp;quot; Brown was quick to respond in a now-deleted tweet where he suggested Punk was trying to attract &amp;quot;more followers&amp;quot; on Twitter and accused the wrestler of taking steroids. CM Punk addressed the controversy in a new video message in which he denied taking steroids and insisted that he is &amp;quot;a proud life long drug free straight edge individual&amp;quot;.  &amp;quot;Chris and I come from different worlds. I don&amp;#039;t have an assistant. I don&amp;#039;t have a bodyguard,&amp;quot; CM Punk declared. &amp;quot;I don&amp;#039;t have a manager or a PR person telling me to delete tweets like Chris does, and I don&amp;#039;t hit women. Period.&amp;quot; CM Punk then challenged Brown to face him in a fight to raise money for a women&amp;#039;s shelter. &amp;quot;I will choke you out and I will make you feel as weak and as powerless and scared and alone as any woman who has the misfortune of knowing a sad cowardly little boy such as yourself.&amp;quot; Brown appeared to decline CM Punk&amp;#039;s offer in a new Twitter message, where he wrote: &amp;quot;Note:today will be the last day I bring @cmpunk existence up!The confrontations that people continuously bring my way are very amusing. &amp;quot;Cuz honestly, that s**t is too time consuming to argue wit every person who has their own issues to deal with!&amp;quot; Brown was also recently criticized by country music star Miranda Lambert, who chided the &amp;#039;Forever&amp;#039; singer during a Massachusetts concert last week. Lambert posed with a fan-made sign which read &amp;#039;Take notes Chris Brown&amp;#039; as she performed her hit &amp;#039;Gunpowder and Lead&amp;#039;, which is about a woman plotting to kill her abusive husband. Brown and Rihanna are believed to be on friendly terms now, even releasing two new remixes together on Monday. &amp;gt; Rihanna thanks Chris Brown for birthday message &amp;gt; Chris Brown: &amp;#039;I did not joke about abusive relationship&amp;#039; Watch Chris Brown&amp;#039;s &amp;#039;Forever&amp;#039; music video below:      "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/showbiz/wwe/news/a367262/wwes-cm-punk-challenges-chris-brown-to-fight-over-steroid-insult/>