1. "A Smile Allures the City". "A Smile Is Allure" is a song composed by Wang Sulong and written by Finale. It is the opening song and promotion song of the TV series "A Smile Is Alluring".

2. "Want to Meet Someone". It is the episode "Want to Meet Someone" from "A Smile Is Lovely" sung by Zeng Yongxi. The lyrics were written by Yao Ruolong and the music was composed by Zeng Manzi.

3. "The Next Second". It is a song written and composed by Wang Sulong and sung by Zhang Bichen. It is an episode of the TV series "A Smile Is Beautiful".

4. "A Little Sweet". "A Little Sweet" is a song written and composed by Wang Sulong and sung by Wang Sulong and BY2. The song is included in Wang Sulong's album "Gravity" released in 2012.