On March 5, HighlightŌĆÖs Yang Yoseob and ApinkŌĆÖs Jung Eun Ji re-released their duet song ŌĆ£LOVE DAY,ŌĆØ and it has been gaining explosive popularity by topping various music charts, including Gene, Bugs, and Melon, the day after its release. The 2021 version of ŌĆ£LOVE DAY,ŌĆØ a sweet confession song about the fluttering hearts of a man and a woman who want to know more about each other, has been chosen as the theme song of Romance 101 main characters Yoo Yeon and Ba Reum. This collaboration song was first released in 2012 to commemorate KoreaŌĆÖs White Day (when people give reciprocal gifts to those who gave them gifts received on ValentineŌĆÖs Day) and received steady love from K-pop fans.
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