What a good time
With big Dipper
We find Mabel
And our good guys
Phineas and Ferb, we crossover with Gravity Falls
Phineas and Ferb, we crossover with Gravity Falls
The fun is here
With the gators
To fight them down
And see them later
Everything's primeval, we're going to fight the gators
Everything's primeval, we're going to fight the gators
The greatest children are ones
Oh, yes, Oh, yes, Oh, yes, Oh
Oooooh Ooh Ooh Ooh
Phineas and Ferb, we crossover with Gravity Falls
Phineas and Ferb, we crossover with Gravity Falls
The flubber's there
To see the men
It'll only come
You don't know when
Phineas and Ferb, we crossover with Gravity Falls
They're Phineas and Ferb, they crossover with Gravity Falls
Mabel and Dipper are the ones
They all take the flubber and run
Oh, yes, Oh, yes, Oh, yes, Oh, yes, Oh, Oh, yes, now
What a good time
With big Dipper
We find Mabel
And our good guys
Ohhh
Phineas and Ferb, we crossover with Gravity Falls
Phineas and Ferb, we crossover with Gravity Falls
(Guitar solo)
What a good time
With big Dipper
We find Mabel
Ohh, and our good guys
Phineas and Ferb, we crossover with Gravity Falls
Phineas and Ferb, we crossover with Gravity Falls
Oh, Phineas and Ferb, we crossover with Gravity Falls
Oh, oh, oh, oh, oh, whoa, oh, oh
Gravity Falls