More “working girls”…
Lady Marmalade - LaBelle
Clothing store.
Corporate speak.
Specialty store.
Surgeon.
East Bound And Down - Jerry Reed
I’m not quite sure what she’s doing but according to Donna Summer She Works Hard For The Money
TCMF-2L
Even the smallest job can be significant:
But tea breaks are important too
The Tom Robinson Band are hard working British lorry drivers in 2-4-6-8 Motorway
While the US equivalent is CW McCall in his Convoy
TCMF-2L
Elves are an exploited underclass, per Barenaked Ladies’ Elf’s Lament.
Been there, done that! Same exact video with her in the waitress get-up. You might want to use the search feature next time. 
Too bad you didn’t go with this one instead.
Bad Girls - Donna Summer
You think I know how to use the search function?
In penance, since the OP opened up from blue collar occupations, I’ll give you an architect with Simon and Garfunkel and So Long, Frank Lloyd Wright
TCMF-2L
Manic Street Preachers with A Design For Life and the lyric Libraries gave us power, then work came and made us free
TCMF-2L
The hardest working man in show business…
Cowboyin’
Well, if you’re going there:
Marty Robbins, “160 Acres”
In college, I had a friend that told me he had no use for country western music. I loaned him a cassette of this album just before he took a long road trip. When he came back, he told me that, now he was a country western fan. I never got the cassette back.
Keeping to the focus of the thread: It’s hard work cleaning up a town…
Cattle wrangling Down Under.
