Michael Jackson is indeed serious about recording that charity single with an all-star cast. But he knows it won’t be easy to convince other stars that his stigma is gone. What to do? Jackson, I am told, is making a full court press on R&B star Usher to be first to say yes. Sources say Jackson feels if Usher agrees, everyone else will follow. Jackson has already spoken with Usher’s manager, his mom, Jonetta Patton. Now he has to pitch the idea to the young singer himself. Meantime, I’m also told that the usual chaos is occurring in the Jackson...