From Their Second Album, Neighvermind.

Wake on up and grab my friends
We'll try so many things by day's end,
One day we'll find what we're good at,
Until then, we'll keep trying and that is that,
How long how long how long how long?
How long how long how long how long?
How long how long how long how long?
How long how long how long
Will it take us
To get our cutie marks?
You can't make us
Give up at all
We'll keep on going
Till we fall!
Two dictionaries
And a chicken
let's get going,
the clock is tickin'!
YEAH!
Some days it seems, it's pointless,
It doesn't seem worth the stress,
But if we don't give it our best,
We'll be like birds without their nest,
How long how long how long how long?
How long how long how long how long?
How long how long how long how long?
How long how long how long
Will it take us
To get our cutie marks?
You can't make us
Give up at all
We'll keep on going
Till we fall!
Two dictionaries
And a chicken
let's get going,
the clock is tickin'!
YEAH!

And I forgot just how long,
We've been working on it now,
We find it hard, it's hard to find,
Oh, whatever, Nevermind.
How long how long how long how long?
How long how long how long how long?
How long how long how long how long?
How long how long how long
Will it take us
To get our cutie marks?
You can't make us
Give up at all
We'll keep on going
Till we fall!
Two dictionaries
And a chicken
let's get going,
the clock is tickin'!
We'll keep tryin',
We'll keep tryin',
We'll keep tryin',
We'll keep tryin',
We'll keep tryin'