Why do you think celebrities use sex to sell records?

I've always wonder why artists like Mariah Carey, Beyonce, Miley, Rhianna, or Nikki Minaj parade around half naked in public, in music videos, or award shows when they are naturally talented and can sing, rap, or dance with their clothes on? My favorite Rhianna's song is a song when she was wearing a wife beater and jeans and simply singing a pretty melody. I don't like Nikki Minaj but she is a good rapper who can rap with her clothes on too. Beyonce, all the Disney stars, have a huge following who will still support them if theystill perform with clothes on.