Hokkien songs.

According to relevant information from Baidu Question Bank, the original question: The source of Hong Kong pop music does not include (). A. "era songs" of old Shanghai; B. Cantonese opera; C. European and American rock music; D. Hokkien songs. Answer; D: Hokkien songs.

Pop songs refer to instrumental music and songs that are short in structure, popular in content, lively in form, and sincere in emotion. They are loved by the masses, widely sung or appreciated, and are popular for a while and even passed down to future generations.