Essay topic examples?

For yr 9 english I have to write an essay which has to do with entertainment. It is a persuasive piece of writing and we have to chose someone who we think is a good entertainer and write about them, give examples of why they are a good entertainer. I first thought Helena Bonham Carter (actress)because I absolutely love her and not too many people know of her, I'd like to try and persuade people that she is a great entertainer, however I''m not sure what points I could make for each paragraph, I mean I know alot about her but I really not sure. Whats your opinion?????