Please feel free to add your own.
The Avett Brothers, Hard Worker.
https://www.youtube.com/watch?feature=player_embedded&v=82duIzjU5oI
I’ve been singing 'Sixteen Tons", to myself, while at work.
But you all enjoy yer BBQs.
http://youtu.be/HI0x0KYChq4 as a Disney fan.
And a Matt McGinn fan.
Looking for a Job
Manura Manya for the horsey people on chiff 
3 nights and a Sunday double time
For maki - I prefer the B side of 16 Tons Dark as a Dungeon
David
That gets my vote too, David. I sang that at a coal miners’ strike rally back in the late 70s, in my salad days. Still a heady, memorable experience.
Is there a song about polysemy? 
Happy Labor Day, everyone. 
Polysemy? Like Flatt & Scruggs’ ‘You’re Right, I’m Left, She’s Gone’?
ho ho
Devo. Working in a Coal Mine.
http://www.youtube.com/watch?v=ms79633njIg
They sure do like their hats.
The Beatles. A Hard Days Night.
Its Not Just A Job… Its An Adventure.
http://www.youtube.com/watch?v=4im1LM080Wc
worked’em all awhile ago… happy labor day
Andy Irvine - “James Connolly”
Niamh Parsons - “He Fades Away” and “Blue Murder”
Happy Labor Day All,
Cayden
Merle: http://www.youtube.com/watch?v=fbEstJ98TcM
Rush: http://www.youtube.com/watch?v=sI5VuBzo-Qc
Donna: http://www.youtube.com/watch?v=MX7MbG6MiQs
Woody: http://www.youtube.com/watch?v=pGcruwhK_es[/url]
For my ancestors: http://www.youtube.com/watch?v=VD8cy1lNHFU and
http://www.youtube.com/watch?v=wj8eqedV758 as well as all of the versions for the many other occupations.
Something more contemporary: http://www.youtube.com/watch?v=lAD6Obi7Cag
And so on.