Big Brother's four halfway housemates have moved into the main house.

In return for their promotion, halfways Ziggy, Amy, Jonty and Liam had to choose four official housemates to swap places with them.

They wasted no time in picking Shanessa, David, Kara-Louise (three of the original halfway housemates). Then they finally decided the fourth housemate to demote would be Tracey as they believed she is more likely to escape eviction after previously surviving three.

The four, new halfwayers will be up for nomination, with all facing possible eviction on Friday. Jonty wept with joy at finally getting a crack at the main house, but Shanessa and Kara-Louise were in floods of tears at the prospect of being evicted.