Key Takeaways The U.S. Department of Justice on Thursday announced an antitrust lawsuit against Ticketmaster parent Live Nation Entertainment. The DOJ accuses Live Nation of threatening and retaliating against venues and artists for choosing ticket providers other than its subsidiary Ticketmaster, a condition the companies had to agree would not happen before their 2010 merger was approved. Live Nation has repeatedly denied allegations that it has monopoly power, saying Ticketmaster's fees are no higher tha ...