I don't know all that much about Earl King other than he had a residency at the infamous Dew Drop Inn in his hometown of New Orleans and played with Guitar Slim and even played as Guitar Slim after Slim was temporarily knocked out of action by a nasty little auto accident. (Earl King also played with Irma Thomas who got some love from On The Flip-Side a few months back.) Earl King became a mainstay on the New Orleans stage for years until his passing in 2003.
Come On not only has an undeniable groove that will get your tail feather shaking and some wicked little guitar riffs (this writer is particularly smitten with the guitar riffs at 3:40), but this song also has some great lyrics. Lyrics like, "I love you baby like a miner loves gold", "you've got me flippin' like a flag on a pole", and "so many people live in make-believe/they keep a lot of dirt up their sleeve." I'm not even sure I know exactly what is meant by that last one, but I like it.
PS, turn your lamp down low, you know I love you so.