Yesterday on 98FM's Big Breakfast, Cooper told us all about the brand new addition to his family:
Meet Butterball the Hamster!
Luke's not much of a fan of Hamsters and reckons they're all evil little furry creatures.
Little did Luke know, Butterballs actual owner is Cooper's 9-year old daughter Elizabeth and one thing she doesn't like is people dissing her new hamster!
Here's what happened next:
Join Cooper, Luke (and maybe Butterball) on 98FM's Big Breakfast
Weekdays from 6am