According to CNN:
Gospel singer Marvin Winans, a longtime friend of the Houston family, will give the eulogy at New Hope Baptist Church. Winans officiated Houston’s 1992 marriage ceremony to R&B singer Bobby Brown.
Aretha Franklin, Houston’s godmother, has been asked to sing at the service, which begins at noon, Franklin’s spokeswoman said.
Houston’s cousin, singer Dionne Warwick, was in New Jersey helping the family with funeral arrangements, Warwick’s publicist said.
Others confirmed on the guest list are Chaka Khan, Bebe & CeCe Winans, the Rev. Jesse Jackson, Bishop T.D. Jakes, Antonio “L.A.” Reid, Ray J and Brandy.
The private invite only funeral will take place this Saturday at the New Hope Baptist Church in Newark, NJ.