This one’s in the “new to me category.” Never heard Shuggie Otis until recently. It’s hard to believe he was a teenager when he started writing and recording songs like this. Of course I’d heard the more famous remake but his original version blows it out of the water.
He did a couple of albums in the early 70s that are considered cult classics now, Freedom Flight which SL23 is from, and Inspiration Information which I think features one of the earliest uses of a drum machine. I too was a latecomer to his work, around 20 years ago. I agree his original is the best.