20 1 1 What did Lin Chi-ling and Jay Chou perform together in the Spring Festival Evening?

Although I didn't watch 20 1 1 Spring Festival Gala, my wife told me that Lin Chi-ling and Jay Chou performed together. Secondly, Lin Chi-ling danced for Jay Chou's Preface to the Lanting Pavilion, which only gave me the feeling of gilding the lily. Originally, "Preface to Lanting" was an antique song, and Jay Chou sang it perfectly, but the appearance of Lin Chi-ling destroyed this antique charm. Of course, it's not that Lin Chi-ling can't dance well, nor that she looks bad. In a word, I just think that it is really unnecessary for Lin Chi-ling to appear in such a classical song.