The record label/fans don't know how much hard work is put into the tours and music they do, that she is so tired with early starts and late finishes and its a harder job than you think. People can do what they want with her body because they're paying for the music or tours they listen to, but they have no clue what goes on when they're not on stage etc.

she's trying to say she's a human being too, and she gets tired and maybe wants time to herself.