On the Rooftops of London

On my way back to London from Cleethorpes I got this song stuck in my head:

"Up where the smoke
Is all billered and curled
'Tween pavement and stars
Is the chimney sweep world

When there's hardly no day
Nor hardly no night
There's things half in shadow
And halfway in light
On the rooftops of London
Coo, what a sight

Chim, chimney
Chim, chimney
Chim, chim, cher-ee
When you're with a sweep
You're in glad company

Nowhere is there
A more happier crew
Than them wot sings
"Chim chim cher-ee
Chim cher-oo"