A long-running Sin City tribute act known as MJ Live has filed a lawsuit against the estate of Michael Jackson over their concerts featuring a King of Pop impersonator, RadarOnline.comcan confirm. In the newly filed court docs, organizers asked a judge to intervene while claiming the late singer’s estate is doing all they can to shut down their show, sending cease-and-desist letters to six venues in other states demanding they cancel tour dates. The lawsuit makes note of Nevada’s specific likeness laws, which allow for the use of a celebrity’s appearance by “impersonators in live performances,…