User blog comment:TheO0032/Parody of a parody of something. I will not post the refrain; it gives it away./@comment-27037991-20171021053432

The original is from Steven Universe.

The parody is Stronger Than You - Chara version, which is a parody of Stronger Than You - Sans version, which parodies the original from SU.

This one it at, as you posted the first part on his talk page.