"Back off". "Back" was written by Song Jianzhang, composed and sung by Jay Chou, and is included in the album "Still Fantasy". The tone of Wang Qing's song "Back Back" is very similar to hers. In 2007, this song won the Top 20 Singles Award of the Year on the KKBOX Online Music Chart. The lyrics of "Back" are: You are used to going to bed late, I stay up late with you, you hate coffee, I will give up this scent, the route you like to take. "Stand Back" was composed by Jay Chou and lyrics by Nanquan Mama Warnhead. Jay Chou said that this song expresses the sadness and regret that everyone who has ever loved has experienced. The purpose of writing this song is to warn everyone not to keep regrets to themselves, and to start changing from now on.