Song that might play when you fight sans

That one song that may or may not play when you enter the battle of the fictional character sans the skeleton who appears in the 2015 role playing game undertale and is a-

Screw it, I’m done. Here’s the song:

Oh you cant have links so I put the link in the tags

Person: hey, you know stmpwyfs
Other person: yeah.

Song that might play when you fight sans.