When John Thomas's parents overheard him singing the words "I'm not sleepy" to himself over and over again in the middle of the night, they thought it was a cute moment worth capturing on tape for posterity.

We encourage anyone struggling with the definition of "Funky" to click to enlarge this vintage ad. HINT: Rhinestones, Tulip™ slick paints, and sparkling jackets all play a prominent role in The Funk. [Vintage Ads via Copyranter]