Arriving in the garden to the surprise of the housemates, Marco ran over to Brian as the pair twirled on the podium.
Following the dance, the BB5 contestant said: "Show me the house real quick!" implying that he did not have much time to spend with the housemates.
Big Brother then asked Marco to make his way back into the garden. "Have fun, you're all doing great," he told the group, before leaving the house.
Referring to Marco's new short, stylish haircut, Preston asked: "Doesn't he look really different?"
Meanwhile, Victor suggested that he had a feeling this morning that Marco would return, saying: "We've now had Ahmed, Anthony, Marco... I knew Marco would come in!"