I think the chorus is catchy
Something about her voice seems different. I dunno. Her voice sounds nicer in this song compared to her others in my opinion though. Like, she almost sounds like the way she did when she was younger, but at the same time there's something new. I don't know if she just got good vocal directing or if the studio edited her voice a certain way or what...
Personally I like it when she sings with more edge. Like her singing in Fly on the wall, or most of tatu. But now I feel like since she's doing mostly pop music for her solo (or er, "sex rock" if she's still calling it that) she's trying to sing in this "sexy" girly voice or something.