Katy Perry's Bon Appetit Video - Thoughts and Views
There are all sorts of problems with this, Katy presents herself as a product, Simply put, this is a female presenting herself as something to be consumed. Arguably this is what all pop stars do - but that in itself is the problem.
However, I would have to very strongly disagree. Katy opens the video in some revealing clothing and is presenting herself as food. Throughout the video, she goes through various stages of food preparation. The first of which is where she is bread and being kneaded, throughout which she is suggestively enjoying all male chefs rubbing her body. This is the first introduction of sexuality into the video.
Unquestionably, in recent years, arguably as a result of some of Marks and Spencer's advertisements, we have seen the emergence of the idea of 'food porn.' However, Katy has merged porn and food porn into the one idea. Whereby she, the female is the food, and essentially reinforcing the idea of females being a consumable product.

dimension, Katy is fragmented.
Katy is the food is chopped, torn, and fragmented in various ways. This idea of fragmentation reinforces dehumanisation of female bodies, as the fragments are visually easier to consume as a view (see Mulvey).
Finally, in the conclusion of this video, Katy is served onto a table. And in the most post-feminist way, Katy saves herself, by dancing on a pole. She overcomes the sexual oppression she has seemingly enjoyed to date, and in keeping with post-feminist values, Katy uses this oppression to her advantage.