Duck was not too happy about this!
The King swung by Triple M's Rush Hour on Tuesday morning and was quizzed about whether he'd watched the newest episode of Game of Thrones yet.
"I haven't started watching this last season, Bill!" he said.
So Billy decided to hit Duck with a huge spoiler from the most recent episode!
"OH BILL!" Duck laughed.
"Put him to sleep for all of our sakes!" JB said.
DUCK FIRES UP AFTER BILLY'S GAME OF THRONES SPOILER:
WAYNE CAREY'S FULL CHAT: