If you were a kid watching TV in the 1990s - or a parent watching their kids watch TV in the 1990s - you know what "Blue's Clues" is.
And you know who Steve Burns is - the super amiable host of the Nickelodian hit kid's show.
Well Rickie Fowler indulged in a little retro-teasing of Jordan Spieth this weekend with this post on Instagram.
Point Fowler. Bonus point for the #stevespieth hashtag.
Now we wait to see how Spieth responds. Although he may be bald (explanation on that here) before he gets payback.