Live Nation -- which owns Ticketmaster -- was dealt a massive blow Wednesday when a jury found the concert company operated an illegal monopoly over ticketing for live entertainment. California Attorney General Rob Bonta applauded the verdict in a statement ... calling it "a historic and resounding victory for artists, fans, and the venues that support them," according to NBC News . Remember ... Taylor Swift slammed Ticketmaster back in 2022, when fans were furious over issues getting tickets