This song is the called "SCP-789-J Song". This song is by GlennLeroi. I will leave a link to his channel so you guys can check out his channel.[ALL MUSIC BELONGS TO THE RIGHTFUL OWNER].[LINKS:]

GlennLeroi:
https://www.youtube.com/user/GlennLeroi/featured

SCP - 789 - J Song (Butt Ghost)

Hello I like to feel good and will try to make music :3

アニメ、ビデオゲーム、マンガ、日本、コミック、映画、フィギュアや彫像、怖い話、ショー、そしてもちろん音楽のファン、別名「ALL THE GOOD SHIT」です

Just a kid that likes SCP things... Including random stuff.

SCP - 789 - J Song (Butt Ghost)

TheSCPkid