next year. Details of how the children were conceived -- and who was the biological father -- have been closely guarded amid much public speculation. The couple divorced in 1999 with Rowe giving Jackson full custody while she got an $8.5 million settlement, according to court documents. Jackson later agreed to additional support. Rowe gave up parental rights to Jackson in 2001, but she changed her mind more than two years later and sought temporary custody of the children. A California appeals court later ruled her rights were improperly terminated, opening the door to a possible custody battle. CNN's Randi Kaye, Kay Jones and Allison Blakely contributed to this report.