Finn sings "All Gummed Up Inside" in reaction to his rejected feelings of Princess Bubblegum. Jake sings an alternate version known as "All Warmed Up Inside," when he goes to the Fire Kingdom to find Finn a girlfriend.
I can't keep pushing this down any deeper,
Why do I keep trying if I can't keep her?
Every move I make,
Is just another mistake,
I wonder what it would take,
Because it feels like there's a hole inside my body,
Like there's a hole inside my heart.
It's like this feeling is gonna consume me,
if I keep waiting for this thing to start.
Oh, I feel like I'm all gummed up inside,
It's like I'm all gummed up inside,
It's like I'm all gummed up insi-i-de.... I-i-ide.