Dear Jay Chou (我这里写的是周杰伦,因为不知道你最喜欢的明星是谁）,
I watched your newest movie,"The Green Hornet" last week,and you were great in it!A couple of years ago,I thought you were a wonderful singer,but I did not realize that you also act really well in movies.I really liked "The Green Hornet" and "Secret".In "The Green Hornet",you spoke in English a lot,and I was surprised to see how much improvement you have made in speaking English,because I can barely detect an accent,and the way you spoke was very fluent.I later heard that you only studied English for one month!Your actions in the movie was really cool,and your character totally looked better than the male protagonist,because he appeared so childish."Secret" had a twisted and interesting plot,and it was very brilliant.This movie involved a lot of emotions,and most important of all,you were the one who invented it.I also enjoyed to hear you play piano,because it sounded very nice.
Good luck in the future,and I hope to see more of your movies!
Sincerely,
XXX(你的名字）
用词难度大概是初中高中的样子.