The first time I remember hearing the expression "Blue Monday" was around l958. It was a wildly popular rock and roll song sung by Fats Domino. Ah, we had REAL music then! The lyrics aren't the greatest; I'll give you that. I've copied them here so that you can sing along.
However the song, as we kids used to say, "has a good beat to dance to." That was all that mattered in the 50s--being able to dance to the beat. As Kathy reminds me, we used to stroll to it. Take time to enjoy some good music.
Blue Monday how I hate Blue Monday
Got to work like a slave all day
Here come Tuesday, oh hard Tuesday
I'm so tired got no time to play
Here come Wednesday, I'm beat to my socks
My gal calls, got to tell her that I'm out
'Cause Thursday is a hard workin' day
And Friday I get my pay
Saturday mornin', oh Saturday mornin'
All my tiredness has gone away
Got my money and my honey
And I'm out on the stand to play
Sunday mornin' my head is bad
But it's worth it for the time that I had
But I've got to get my rest
'Cause Monday is a mess
To answer Diane, yep, Fats Domino is singing and living in New Orleans.