Chan wrote the lyrics of "The Song of the Sunset" (夕陽之歌) for Anita Mui as a theme song of the 1989 film, A Better Tomorrow III.[2] The song (besides Priscilla Chan's counterpart, "Chin Chin Kuet Gaw" [千千闕歌]) is a Cantonese rendition of Kōji Makaino's Japanese song, "The Song of the Sunset" (夕焼けの歌, Yūyake no uta).
Chan, alongside composer Peter Kam Pui-tat, wrote the lyrics of "We Are Ready", the theme song for the 2008 Summer Olympics, held in Beijing,[3] sung by various singers as an ensemble. Then he and Kam composed "I Can Fly" (我飛故我在), which Film Business Asia critic Derek Elley considered "half-memorable" but unsuccessful "at being an anthemnal [sic], uplifting ballad",[4] for the 2010 Chinese adaptation of High School Musical, Disney High School Musical China (歌舞青春), which Elley rated three points out of ten.[4]