This is just brilliant found via
metaquotes and written by
ironychan
Here's a planet
There's a planet
And another little planet
Fuzzy planet
Funny planet
Planet
Planet
Not
Planet
Planet
Comet
Planet
Asteroid
Potato
Planet
Planet
Galileo
Planet
Planet
Planet
Not
Tombaugh found a planet
It showed up late at night
Comparing pairs of photographs
It moved from left to right
They thought it was a big one
It turned out to be small
And now we have decided
It's no planet after all
Did you ever see a planet
Watch a planet
Do the planet
Planet's planet
What's a planet
Planet
Planet
Not
Half a planet
Double planet
Not a planet
Hawking
Planet
Extrasolar pulsar planet
Planet
Planet
Not
Is this how it's told now?
Does everyone agree?
What became of Ceres
And of UB-313?
The solar system's getting thin
Pluto's been forgot
Time for it to spin away
'Cause planet it is not
Here's a planet
There's a planet
And another little planet
Fuzzy planet
Funny planet
Planet
Planet
Not
Planet
Planet
Comet
Planet
Asteroid
Potato
Planet
Planet
Galileo
Planet
Planet
Planet
Not
Tombaugh found a planet
It showed up late at night
Comparing pairs of photographs
It moved from left to right
They thought it was a big one
It turned out to be small
And now we have decided
It's no planet after all
Did you ever see a planet
Watch a planet
Do the planet
Planet's planet
What's a planet
Planet
Planet
Not
Half a planet
Double planet
Not a planet
Hawking
Planet
Extrasolar pulsar planet
Planet
Planet
Not
Is this how it's told now?
Does everyone agree?
What became of Ceres
And of UB-313?
The solar system's getting thin
Pluto's been forgot
Time for it to spin away
'Cause planet it is not