Standing out from BigBang's usual "heavily produced electronic dance tracks",[2] "Love Song" is pop-rock ballad[1] that was compared to Coldplay's early material.
[3] The single "utilizes building strings and overlapping vocals to create an uplifting tone despite the otherwise depressing lyrics"[2] and combines "electronic rhythm and modern rock elements to express the nostalgia and agony of a loving woman who left the world.
Billboard named the track BigBang's sixth best song, praising the "excellent vocal performances".
In the MV, the Bigbang members walk around a barren land, exempt from piles of rubble and what seems like fire coming from the ground, whilst singing the song, as the camera zooms around abandoned and destroyed cars, broken stop signs, cracked grounds, and telephone poles.
Whilst the Bigbang Members are dancing, what seems to be either soot or snow falls, implying that a nuclear apocalypse took place.