The Jacksons won't let a $4 million custody deal stand in the way of anyone's grief. Michael Jackson's family has invited Debbie Rowe, the biological mother of Jackson's two oldest children, to his funeral. The New York Post reports that if she accepts the invitation, the event would be Rowe's first supervised visit with Prince Michael, 12, and Paris, 11, since inking the custody deal with the Jackson family in the wake of Michael's death. The funeral is scheduled for Sept. 4 in Glendale, California. In other Jackson news, search warrants were unsealed yesterday. The police evidently found marijuana, the generic form of Valium, and other sedatives in Jackson's house the day after he died.