Jackie Chan sings

城市让生活更美好 chéng shì ràng shēng huó gèng měi hǎo

Better City, Better Life

Jackie Chan, the 55-year-old martial arts and comedian actor is also well known as a singer in Asia.
He performs this Expo-theme song in front of an impressive Shanghai scenery accompanied by Lang Lang on the piano.

Note:
Youtube is blocked in China, sorry.
My Chinese friends please follow one of the following links to watch the video:

see also:
Haibao