I think it's pretty obvious why we're posting this song this month. It's one of the happiest songs ever written. A moderate hit in the late 1970's, it's fondly remembered as a classic today.
It's also got a single note that Withers sustains for eighteen seconds. This is one of the longest ever sustained in a pop song.
The song has experienced something of a resurgence in 2020, largely due to its placement in this Allstate commercial. Admit it, you're smiling now, aren't you?