I know it's Wednesday, but I was just thinking about "It's a Monday Kind of Tuesday," and the question occurred to me: What day of the week is most frequently sung about?
And if you're planning to say Friday, I hope the song on your mind is "Friday On My Mind."
I'm very fond of "Gloomy Sunday," and maybe it's Sunday.
I'm guessing the answer is Friday, Monday, or Sunday. No way it's Thursday.