It follows the fallout of a nominations twist which surprised the housemates over the weekend.
Housemates yesterday were called to the Diary Room for this week’s nominations but in tonight's show, Big Brother gathers Housemates on the sofa and screens the nominations of all to see.
Post nominations, Heavy D and Bear were in mischievous mood and threw various food stuffs about the House including olive oil, pasta and cereal.
Renee warns Housemate to “pay no attention…ignore the fool in the room” but the pair's antics cause it all to kick off.
Samantha Fox rolled her eyes: "Here it goes again."
Renee then questioned Heavy: "Are you feelings hurt? Is that how you behave when your feelings are hurt? What a shame, what a disgrace."
She then raged: "This game that everybody is playing is making me f**king sick, why doesn't everybody say it to each other's face what the f**k they feel, they want to call each other old, ugly, fat, controlling..."
Meanwhile in the garden, Bear encouraged Heavy and laughed to Lewis and Marnie: "He's in self destruct mode."
After discovering the mess, Katie finally cracked.
The up until now quiet housemate snapped: "I'm going to smash those bottles of alcohol. I'm telling you Big Brother, you do not want to see this side of me."
She then confronted Heavy D: "If you were smart you will take this f**king broom, Colin, and f**king clean this s**t up with me.
"Don't you dare f**king laugh. Put your God Damn cigarette out and clean your f**king s**t up."
Following their behaviour, Big Brother called Heavy D and Bear to the Diary Room separately.
They were told that their actions were not appropriate and that they should clean up the mess they have created.
Furthermore, elsewhere in the episode, Bear is warned about goading his fellow housemates after a bust up with Renee.
Celebrity Big Brother airs tonight at 9PM on Channel 5.