"I'm Forever Blowing Bubbles"

From TheChels.info - The Chelsea Football Club Wiki

"I'm Forever Blowing Bubbles" is the West Ham United anthem. When sung by Chelsea fans the words are changed in order to mock their London rivals.

I'm forever blowing bubbles,

Pretty bubbles in the air,

They fly so high,

They reach the sky,

And like West Ham they fade and die.

Tottenham always running,

Arsenal running too,

We're the Chelsea boot-boys,

And we're running after you!