Saturdays song

To the tune of 'heads, shoulders, knees and toes' -

Hands, buttocks, knees and backs, knees and backs.
Hands, buttocks, knees and backs, knees and backs.
And lots of cream to smooth your crack.
Hands, buttocks, knees and backs, knees and backs.

P.S. Many of these Poems (and this song) are penned by Trevor.