I need help choosing my Gcses?

I am not sure which GCSEs i want to take as my optionals. my school give 3 science choices so i am choosing double science so i only have 2 optionals. When i grow up i would like to be an actress/singer however i am also interested in a job with computers. My favorite subjects are ICT (a compulsary gcse) and Drama (Optional) Could you suggest which 2 optionals to take and also some career suggestions. I live in the UK.