According to the usually-reliable People, which quotes a family source, Houston’s Bodyguard co-star Kevin Costner will pay tribute to Whitney at her “invitation-only†funeral on Saturday. People is also shooting down the rumors that Houston’s ex-husband Bobby Brown is banned from the service, quoting a family friend who says that “Bobby will be there at the funeral to support his daughter.†Meanwhile, here are three confirmed facts about the funeral: both Aretha Franklin and Stevie Wonder will perform, and Clive Davis will speak, says Houston’s rep. The entire service will be streamed online.Â