This is more of a tribute, she is not trying to be Whitney she is just trying to keep the image and love alive and thats ok in my eyes, thank you Heather, i support you...
Heather should do that role justice. She has the voice and acting skills and I can only hope they bring the musical to Broadway with her playing the lead role.
I wonder if she actually will sing it in the show, though? It seems to be more suitable for her sister Nikki to sing to Frank after she makes a pass at him.