At first I was also thrown off by the song choice HOWEVER I now get it. Her speech was laced with the #metoo movement and so were the songs she chose. The song Nasty was pretty much a declaration against the men who have been the violators. It was a message to men who take advantage of women. If you noticed right before she went into Throb she was standing at the top of the pyramid surrounded by all women in solidarity. The song Throb was a celebration of women of women taking control of their sexuality. Having the freedom to be in control and "not controlled". Pretty awesome but subtle statements Ms. Janet.