So ATBO is going to have a song that is "(Eng Ver.)" and "(Duet)"

I was looking at ATBO's track list for their 1st single album.

One of the songs is called Must Have Love and also has an English duet version.

Seems like Fifty Fifty might have started the trend of making English duet version of songs.

I'm sure that other groups before ATBO also did a "Twin Version".

I'm not sure if there are some "pre-Cupid" kpop songs like this too.