A Live Nation investor has sued members of the live giant's board - including CEO Michael Rapino and CFO Joe Berchtold - in response to the recent filing of legal action against the company by the US Department Of Justice. The boss of Oak View Group, Tim Leiweke, is also named as a defendant over allegations of collusion between the two live music companies. The government department accuses Live Nation and its Ticketmaster subsidiary of anticompetitive conduct, and has asked the court to force Live Nation to sell off the Ticketmaster business it acquired back in 2010. At the time of the Live Nation/Ticketmaster merger, the company agreed a consent decree with the DoJ which regulated how the different strands of the business would work together to allay competition concerns. The DoJ reckons the company breached that decree. The government's legal action, shareholder John Williams claims, will "severely damage and injure" Live Nation and its shareholders.