Mr. Cheng Sang (鄭生) performed a cappella, about Hong Kong adolescent mentality under WWII, in Cantonese language.
Lyrics:
大夢誰先覺?平生我自知。草堂春『瞓』足,
(戲棚官話)窗外日遲遲。本人諸葛亮(จู กัด เหลียง),字(alias)『孔明(ขง เบ้ง)』。
誰無妻奴見沙場多鬼哭,一將功成萬骨枯,成日話救國,偉論話滔滔,不過係癡人說夢,您越講越糊塗,您知否世事浮雲,人生朝露,但教花前風月在,會當痛飲獨離騷,救國如此熱衷,無非觀眾,觀察由得您做,點似得我逍遙自在,就免操勞。人生如寄,溫柔不住,住何鄉?
...
https://www.youtube.com/watch?v=Epxbk-sEB_U