U-KISS are very protective as a boyfriend as what their song says 'She's Mine' but AJ puts his own version saying 'She Ain't Mine'!

AJ got his own version from his group's original lyrics, it was a different approach. He raps it up explaining that the girl on the song wasn't theirs. The newly written chorus tells like this; "she ain't mine she ain't mine / I don't even have the slightest bit of interest / Disappear from my side / she ain't mine she ain't mine / Are you surprised (wow) / But it's the truth so what", he tells listeners, as well as the girl of the lyrics, that even though she may think that she's all that and that he's totally into her, he really isn't. 

AJ didn't forget to remind fans that the lyrics are intend to bring laughs "This is to inform you that this was made just for fun.".

The idol is temporarily in Columbia University for his studies, well, you know education comes first to all our idols right? But, this is a token to hold on to by fans in case of his return.