Whitney Houston's Funeral: Aretha Franklin, Stevie Wonder to Perform; Clive Davis to Speak

Aretha Franklin and Stevie Wonder will perform at Whitney Houston's funeral, while Clive Davis will speak, Houston's rep, Jill Fritzo, confirms to The Hollywood Reporter.

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According to a report on People.com, Kevin Costner -- who starred alongside Houston in 1992's The Bodyguard -- will also be a speaker at the private services, which are being held at noon Saturday at New Hope Baptist Church in Newark, N.J.

Houston sang at the church growing up; her family members including mother, Cissy Houston, and cousin, Dionne Warwick, are organizing the funeral.

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Houston died Saturday at the Beverly Hilton hotel, at the age of 48. Her body was found "underwater and apparently unconscious" in a bathtub in her hotel room, police said. An autopsy was completed -- but the results are on security hold pending a toxicology report.

Her body was flown into Newark on Monday night in Tyler Perry's private jet; the casket was then transported to the Newark's Whigham Funeral Home, which is handling the services.