Michael Jackson’s ex wife Debbie Rowe, the biological mother to two of the late singer’s three children Prince Michael, 12, and Paris, 11 – was reportedly scheduled to attend a hearing for temporary guardianship at Los Angeles Superior Court on July 20.

Marc Schaffel, Jackson’s former business partner and Rowe’s friend said: “Debbie says that she will definitely be at the custody hearing”

According to Jackson’s last will, Katherine was named as guardian of all of his children and is currently staying with her in California.