KIM JONG-UN, Dennis Rodman and two Meghan Markles were among the guests as Geelong players let their hair down on Wednesday - or in both Meghans' cases, kept it up.
Cats skipper Joel Selwood worked a bit of ginger through his beard to play a convincing Prince William in the annual dress-up fest.
If you think you know who played Selwood's regal bride, take the Friday quiz, then put your mates to the test.
This week we're also asking you to name the runner-up in the 2018 NAB AFL Rising Star Award, and how the Pies' qualifying final defeat to West Coast bodes for the rest of their finals.
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WHICH CAT DID IT BEST? The best Wacky Wednesday pictures