The 22-year-old daughter of the late star is currently fighting for her life after being found unresponsive face down in a bathtub on January 31, and the 'Ain't Nobody' hitmaker - who was a close friend of Whitney before her death in February 2012 - believes she would be terribly upset to learn about Bobbi Kristina.
She said: ''Whitney would be devastated. I wish she was here. You really don't know what this is like for a mother until it happens to you.
''I think I'm pretty close to feeling what she would have felt and what she's feeling right now, wherever she is.''
Chaka - who has fought drug addiction herself - was ''shocked and hurt'' to hear the news about the young girl she's known all her life.
She told the Daily Mirror newspaper: ''I can't say I was shocked ... But I was definitely hurt, disappointed ...
''I've been in conversation with the family. Everyone's devastated, everyone. I love Bobbi Kristina, I love Whitney, I love Bobby Brown. I love Cissy - I love them all.
''But we just have to wait for what happens next. All I want to do is be there for them. I just need to pray.''
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