Paul Rabil Pictures

Whitney Houston's 19-year-old daughter was taken from the Beverly Hilton hotel on a stretcher Sunday morning, a matter of hours after visiting Cedars-Sinai Saturday night.

While details are still largely unknown, one Grammy producer describes the planned tribute as "respectful," and not a "full-blown" spectacle.

Whitney Houston was the kind of artist whose voice and work changed the music that came after her. Here's what other stars had to say about the influential singer upon her passing.