Obviously a sad song about a roadie with questionable morals and a low self image. Lets see if we can improve it.

Rosie by Horseman Browne

well, she was standing at the race track, when we went to the course
She was way too small to be a racing horse
She was too small for a mountie, Too small to pull a sleigh
But we got her a job on that fateful day

Well, we got her a harness so she could lead the blind
But we knew we would have to cover, her behind
The more we watched walk away , The more we heard her Neigh
We knew that scarlet Knickers, were the only way

(chorus)

but Rosie you're a guide (you lead the blind)
You're to small to ride (With a Rosie behind)
when we come to red lights (You go and watch out for me)
Lets go to the restaurant tonight, Rosie

Well I don't know how the story end but I saw it begin
How Cherry got herself a guide, equestrian
With a pony guiding you, you have watch for the do
That's why she wears those panties, made of satin