Likewise during the 2012 Olympics he tweeted something like "I think break-dancing should be an olympic sport lol" to which Frankie Boyle responded something like "How about mixed-gender boxing? You'd have a shot at the gold there mate."  
  
**Edit** Found it!  
  
http://www.tntmagazine.com/media/News/chrisbrowntweet.jpg

**Another edit** 2012 Olympics, not 2009