Young Hong Kong singers Daniel Chan, Ronald Cheng, and Gigi Leung had their big breaks in the 1990s. Chan's "Only you in my heart", on the album of the same name, was released in 1997 when Chan was only 22; the song was later selected as the opening theme song of Singaporean TV series, "From the Medical Files". Chan would also continue to sing a few television opening/ending themes in 1998, including "Lonely nights I'm not lonely" (from "Stand by me"), "When dreams are discovered" and "Does your heart hurt" (both from "A Piece of Sky").