都市~Lonely Night~是一首City Pop 風格的歌曲，由Delta T 作曲、編曲、監製，與Uka Yeung 一同作詞。
Delta T 創作此歌時參考多首City Pop 歌曲。與Uka Yeung 創作歌詞時，亦參考了80年代常用的歌詞表達手法，也使用大量80年代的特色，茶餐廳、卡式帶、舞池、霓虹燈等等去描繪城市繁華與心靈空虛的對比，再用快樂掩蓋憂傷，及時行樂。
City~Lonely Night~ is a City Pop song composed, arranged, and produced by Delta T, and lyrics was wrote with Uka Yeung.
The song filled with the 80s popular Japanese style sound, Funk guitar, strong rhythm and bubble sound effects in the night city vibe.
Delta T referenced several City Pop songs. When composing the lyrics with Uka Yeung, they also wrote in a 80s style to depict the contrast between the bustling city and the emptiness of soul. Happiness covers sorrow and has fun in time.