Could it be that the main verse of this song is particularly catchy?
No, it's not.
The quick viral spread of this song is mainly due to three reasons.
Firstly, because Lin Yuan joined in the singing, and secondly, because the song's lyrics and singing style are incredibly enchanting!
Thirdly, because Zhao Ying Ge posted a status on her blog:
"There's a song in this album called 'Sigh', it's personally one of the songs I enjoyed recording the most. Let me share a small secret with you all: actually, this song wasn't supposed to be on this album, but I insisted on it so much that you almost didn't get to hear it (dog head emoji)."
Perhaps this status is the main reason!
Hence, the hottest liked comment in the song's comment section is:
"Looks like normal love duets can no longer satisfy Zhao Ying Ge!"
"Let go of that man, let me!"
"Wow, Zhao Ying Ge's feelings are clear to everyone!"
"Hmph."
"Rival, draw your sword!"
"Haha, our Fish Papa is just playing along."
