I'm happy when you're happy.

Good boy, good boy, Wu Li. The lyrics of You Are Happy, I am Happy are written by Zhang Zhiyuan, composed by Zhang Zhiyuan and arranged by Han Yongjian. It was released in Wu Li on April 23rd, 20021year, and it is a female singer from the mainland. Her masterpiece is "I am happy when you are happy". The lyrics are because you are happy, so I am happy because you are sad.