Subscribe to download
Friday Night Funkin' Music Pack

Every song in Terraria replaced with songs from various Friday Night Funkin' mods, Otherworld included. Music Boxes have also had their names included, next to the original names. There is swearing in some of the songs, so be weary of that.
Maybe I didn't pick the best songs to replace them with, but there's a LOT of good FNF songs, I couldn't possibly include everything. But if you think you have better ideas, by all means let me know, or even make it yourself! I am a little picky though, so don't get your hopes up about seeing certain songs in here.
The volume isn't perfect, but I think Terraria has some weird audio mixing code that makes it all weird. I did some manual mixing, but I couldn't get it exactly right, but nothing will have you completely unable to hear a song or blasting your eardrums out. Unless you listen to Little Man 2, but I'm not liable for that.

Song list:

Overworld Day - Lo-Fight
Eerie - Cycles
Night - Safety Lullaby
Underground - Pasta Night
Boss 1 - Improbable Outset
Title (Classic) - Philophobia
Jungle - Lonely Looser
Corruption - Stare
Hallow - Celebrate
Underground Corruption - Lurking
Underground Hallow - Foolhardy D-Side
Boss 2 - Madness
Boss 3 - Hellclown
Snow - Frostbite
Space Night - Umbra
Crimson - Sadness
Boss 4 - Fatality
Alt Overworld Day - Challenge-Edd
Rain - Smokebomb
Ice - Slaybells
Desert - Lights Down
Ocean Day - High Shovel
Dungeon - Brimstone
Plantera - You Can't Run
Boss 5 - All Hail the King
Temple - It's-a Me D-Side
Eclipse - Monochrome
Mushrooms - Endless
Pumpkin Moon - Foolhardy
Alt Underground - Isotope
Frost Moon - Left Unchecked
Underground Crimson - Rage
The Towers - Cycles D-Side
Pirate Invasion - No Villains
Hell - Ashes
Martian Madness - Fourth Wall
Moon Lord - Death Toll
Goblin Invasion - Chaos
Sandstorm - Lost Cause
Old One's Army - Amusia
Space Day - Bygone Purpose
Ocean Night - Purin
Windy Day - D'low
Town Day - Milk
Town Night - God Feast
Slime Rain - Oversight
Day Remix - little man 2
Journey's Beginning - Whoopee
Storm - You Can't
Graveyard - Watchful
Underground Jungle - Snake Eyes
Jungle Night - Fun is Infinite
Queen Slime - Faz News
Empress of Light - Ballistic
Duke Fishron - Sunshine
Morning Rain - Talentless Fox
Alt Title - Armageddon
Underground Desert - Identity Crisis
Journey's End - Bite
Deerclops - MissingNo
Aether - Disability

Otherworld tracks:

Day - Performance
Night - Improbable Outset D-Side
Rain - DGuy
Underground - Man
Desert - Die Batsards
Ocean - Faker
Mushrooms - Shinto
Dungeon - Bonedoggle
Space - Cashmoney
Underworld - Mando
Snow - Christmas
Corruption - Neurotic
Underground Corruption - Too Slow
Crimson - Too Slow D-Side
Underground Crimson - Followed
Ice - Spookpostor
Underground Hallow - Pinkwave
Eerie - Fight or Flight
Boss 1 - Double Kill
Boss 2 - Boiling Point
Invasion - On Your Trail
The Towers - Reactor
Moon Lord - Burning in Hell
Plantera - Taste for Blood
Jungle - Midnight
Wall of Flesh - Stress D-Side Alt
Hallow - Sansational