Tonight Show bandleader Rickey Minor and gospel singers Donnie McClurkin and CeCe Winans are also on the guest list for the memorial service, Houston's rep has told Us Weekly.
Houston's Bodyguard co-star Kevin Costner, record executive Clive Davis and Marvin Winans are among the speakers who will honour the popstar's legacy at the New Hope Baptist Church in Newark, NJ.
Aretha Franklin has been asked by the Houston family to sing during the funeral and Stevie Wonder will likely perform as well.
Saturday's memorial service will be streamed on the internet for Houston's fans and will also be carried live on television channels around the globe.
A private viewing of Houston's body is to be held for her family and friends later today in Newark.
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Watch Whitney Houston's 'Exhale' music video below: