I know nothing about Kesha's music (lucky me?), so I can't comment. Yes, lucky you - Ke$ha (note the spelling) is a female wanna-be rap artist.
Ever see the movie Porky's, when Brian looks at Tim (after Tim makes a rather stupid remark about Jewish people) and says, "you know, you're too stupid to even be a good bigot"? Ke$ha isn't even intelligent or talented enough to be a good rapper. <s>
But she's the musical flavor of the month, and so I have to endure.