Here's the official TSUM x Last Breath AU a friend of mine made, I helped him make phase 1 of the track and yes it's official.

TSUM TLD by https://www.pixilart.com/spongeblack

Last Breath Phase 1 FLP by Benlab

TSUM and DUFFED FLP by https://soundcloud.com/mikeym2b

The Simpsons by Matt Groening

UnderTale by Toby Fox

Cover art and sprite by me

The Simpsons: Underground Mayhem - The Last Duff Phase 1 (Official) "Not Brainless Anymore"

I'm a Gamer that play's games and makes music and pixel art, also makes games and fanmade ones. Check me out on YouTube: https://www.youtube.com/channel/UCH-ICWqdCDUMuuUPL_gU-pg.
Deviantart: https://www.deviantart.com/chrissgaming
Pixilart: https://www.pixilart.com/spongechris
Gamejolt: https://gamejolt.com/@ChrissGaming
Twitter: https://twitter.com/Chris_sGaming

The Simpsons: Underground Mayhem - The Last Duff Phase 1 (Official) "Not Brainless Anymore"

Chris's Gaming