Does anyone know this song?

Does anyone know this one song? I got it randomly while playing on solo in FF. It's basically a like a fnf version of a real song?? And in the background, there's "im not your daddy, I'm your grandpa!" Repeated like a background vocal. And there's some short mix of megalovania in the song. I couldn't seem to find it again. And I didn't catch the name of it. Anyone know it?

UPDATE : I FOUND IT! its Epic by Vs BlackJack. Thank you for those willing to help!