Colorado has joined a federal lawsuit against mega-promoter Live Nation Entertainment along with nearly 30 other states, Attorney General Phil Weiser said Thursday, alleging a ticketing and booking monopoly that has harmed consumers. The long-expected lawsuit, for which the U.S. Justice Department has been laying groundwork ever since the Taylor Swift ticket debacle in 2022, comes in the wake of record-high average ticket prices and complaints about bots and scalpers — and as the concert industry has roared back over the last three years with record revenue. Now, the U.S.