The grandmother from Utah sways, points, bops and even moonwalks to the hit I Wanna Dance with Somebody in the video.
With the help of her grandson Adam Forgie, Harr – who is legally blind and has moderate hearing loss – posted the clip to honour the late star.
Harr says in the video: “I’m doing this in honour of the late Whitney Houston. It’s very hard to think of her being gone.”
Check out the legendary nana’s moves here: