Isn't the first question "What is considered sexy?"
I'd say in the 80's people like Madonna did this porno thing already, sex sells.
Now everybody knows sex sells it's a bit passe but accepted.
I would say Aguillera, and Britney had a Porn off with outfits a few years ago, now Rhianna is into it and so these are just the big mainstreams and the rest follow in time.
Things like Hannah Montanna (Miley Cyrus)- Walt Disney - has always promoted the sexualisation of children.
If you showed your ankle and went on the street at the beggining of the 1900's you'd probably be told you'd be raped.
But yes I think your conclusion for your essay should be a YES because the mainstream companies promote their top stars in fishnets, camel toe leatards, heavy makeup and wiggly butt busting rap belly dances just slap flesh across our tired TV sets.
Lady Ga Ga (huge kiddy fanbase) used to be a stripper. Qualified for the job!
It's actually a Jewish agenda as most of the American media is run by them, and no i'm not anti wotever it is, but i am totally against the sexualisation of children in society and promoting sexuality to youngsters, infants etc.
The spice girls did this really well. Was it really 'Girl Power'?
Then again I love Indie bands that get old grannys to perform their songs. Maybe that's sick too.