It is possible you are looking for one of these similar popular tracks:
: This is a song originally by David Tao that Bai Yu famously covered at the 2019 Dongfang TV New Year Concert . Bai Yu Lonely Night Gu Du De Ye MP3 Download
: A massive hit by Eason Chan for the series Arcane , which often appears in searches for "Lonely" and "Gu". It is possible you are looking for one
: A well-known ballad by Guan Zhe (Grady) that features similar themes of late-night longing. Bai Yu Lonely Night Gu Du De Ye MP3 Download