She praised Whitney (rest her soul), but Whitney even admitted that she didn't take care of her voice and she didn't care that she had the most powerful voice in the world all she cared about was smoking and getting high. She said that on Oprah back in 2010. She admitted to ruining and not taking care of her voice and Mariah has never said anyting negatively about trying to ruin her voice or not taking care of it, she (Mariah) did however say some years ago like maybe around 2010 or 2011 when someone said something negative about her voice and her not having ballads anymore she said she just wanted to make fun of music.