Sheamus & Cesaro brought the WWE Universe to its feet at WWE No Mercy during a thrilling Raw Tag Team Championship battle against titleholders Seth Rollins & Dean Ambrose. However, The Celtic Warrior’s entrance attire had another fandom screaming “Wubba Lubba Dub Dub!”

Eagle-eyed fans of Adult Swim cartoon “Rick and Morty” watching No Mercy on WWE Network quickly noticed Sheamus’ jacket was adorned with a patch of Pickle Rick. What exactly is a Pickle Rick? It’s the result of one of the mad scientist’s insane self-experiments in a popular episode of the series from earlier this summer that you’ll have to see to believe.

The Celtic Warrior is a huge “Rick & Morty” fan and even gave his commentary on an episode for the DVD release of the show’s second season. Sheamus’ jacket is just the latest step in The Celtic Warrior becoming WWE’s squanchiest Superstar.