i didnt know she did all that, but hearing it from someone i truely wasnt suprised. shes doing this because shes getting paid alot of money to do it and producers/ corporate execs know that sex sells in america and since miley cyrus has been a teenage icon for a while she will essentially pull in alot of sales because people will wanna watch the movie just to see her do obscene things. thats the way the world works.