I am sure ballet heels never will;). This is an extreme shoe and will never be a normal everyday footwear even for those who can walk on these properly- no matter what some phantasies would expect;). Thoughts are free- phantasies legitime, but one should differenciate if itīs about reality;). but I think they will appear again and again in pop- culture (music, advertising, modern arts) - for the reason they are so extreme.
there are more people who like ballet SHOES (classical ballet dance shoes) than those who might be fascinating by ballet HEELS but even those are not worn on the street altough it would be even easier as one can change.
As to green light, the video is always cut so that you usually cannot see the arms and the legs of the persons at the same time... and in the only scene the whole person is visible, you recognize why.
that scene with aguillera in ballets I think is beautiful especially as she does not try to imply something she does not really do.
here the scene with pink.
http://www.light-fetish.de/downloads/pinkballet1.jpg
but Iīve heard from a friend she CAN walk in ballets and there would exist a video somewhere her doing that.
I think umbrella by rihanna quite nice too - she really walks on pointe shoes. I do not think I could.