Via reader rpauli:  

So Long and Thanks for All the Fish Written and produced by Joby Talbot So long and thanks for all the fish
So sad that it should come to this
We tried to warn you all but oh dear You may not share our intellect
Which might explain your disrespect
For all the natural wonders that
grow around you So long, so long and thanks
for all the fish The world’s about to be destroyed
There’s no point getting all annoyed
Lie back and let the planet dissolve Despite those nets of tuna fleets
We thought that most of you were sweet
Especially tiny tots and your
pregnant women So long so long, so long so long, so long
So long so long, so long so long, so long
So long so long and thanks for all the fish If I had just one last wish
I would like a tasty fish
If we could just change one thing
We would all have learnt to sing Come one and all
Man and mammal
Side by side in life’s great gene pool So long so long, so long so long, so long
So long so long, so long so long, so long
So long so long and thanks for all the fish