Just gonna say there is many songs but for all you sans fangirls I will put a super cute song with a ton of feelz in it about sans and like I said before many more songs.

This is not a song but it has many feels.

This ones my personal favourite "right jab left stab" ok I'll stop now that's just my favorite lyric.

Chara: "I don't need your damn peace."

Toriel: chara don't take one more step further...

Chara: you know I'm gonna kill you now right....*slash then dose a evil laugh*

I can't help it dose lyrics tho like wtf "let's build a fort of death, whach their lives shatter." And "raise my knife high to kill them faster." That's why it's my favorite song just those lyrics describe me so well.