Women In The Music Industry

I looked over women in the music industry previously and noticed many things about how the women can change their style around and how they represent women.
Women in the music industry hold a high role and their decisions can impact both male and female viewers.                                
Katy Perry in California girls seems to emphasize the fact that women have breasts. She uses the theme of Sweets and deserts to portray seduction and does so through out. Even by the way she eats it.
You can also see her lying in the clouds of candy floss nude hiding any significant women 'areas'. This may suggest a tease to men, while others consider this a shy hiding of what she does not wish to show but still remains to be seen as sexy. 

However, Snoop Dog is shown as a high figure in this video wearing a suit and sitting at the head of the table like a boss. The video almost makes it seem as though all the girls were his 'bitches'. 
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In this video by Jessie J, we see her singing about how she can 'Do it like a dude'. She explains through music how girls can do the same things as men and how there is no difference.
'Grab my crotch, wear my hat low like you.' This also suggests that she is showing herself to be like a man.
Contradictory to this, she is wearing high heels, little clothing and is dancing dirty which disregards the main purpose of the song.

I appreciate her attempts to get her point across to the audience that women are no less than men but, we don't seem to see any men delivering songs to show equality between men and women.