Emkay's song comes from king dice i just noticed, where he sings that he is the devil's right hand man : r/EmKay

The Nightmare Before Christmas Part 15 - King Dice's Song

How I met king dice and the devil (part 1)

How I met king dice and the devil (part 1)

CupHead OST - Die House (King Dice) (with Lyrics)

On A Roll - ORIGINAL CUPHEAD SWING SONG ft. King Dice & Devil by

Yes King • Loop Recordings Aot(ear)oa

How I met king dice and the devil (part 1)

The Cuphead Show King Dice & The Devil

CupHead OST - Die House (King Dice) (with Lyrics)

The Cuphead Show King Dice & The Devil

The Cuphead Show King Dice & The Devil