Davina McCall will host part of Friday night's double bill of Big Brother from inside the house.
She will introduce the show's latest highlights and eviction news alongside the housemates, who, as part of this week's Ignore The Obvious shopping task, must do their best not to acknowledge or react to her presence and carry on as normal.
Also causing a distraction will be The X Factor's singing twins, Jedward.
John and Edward Grimes will perform their new single, All The Small Things, from the Big Brother garden.
"We are really excited to be playing our new single in the Big Brother house. The housemates have been doing really well at this task but we are going to make it really hard for them to ignore us," the pair said.
The housemates have had to fight their natural instincts for this week's shopping task, which has seen appearances from family members and friends, a big brass band, squabbling gorillas, noisy tourists, strippers and zombies.
Since Wednesday, they have been doing their best to ignore the various distractions sent into the house, although Mario incurred a fail when he burst into tears after seeing his grandfather dressed as Father Christmas in the Diary Room.
If they are successful in the task, they will win a luxury shopping budget and messages from home.
A new housemate is also set to enter the house on Friday. Graffiti artist Sam will make his grand entrance during the show's double bill, following Laura's departure on Wednesday.
The 21-year-old, from Kent, is no stranger to the show, as he was one of the six potentials alongside newcomers JJ and Rachel hoping to be chosen by the housemates last Friday.
* New housemate to enter Big Brother 11 on Friday Mirror.co.uk - 1 day ago * Laura quits the Big Brother house Gaming Supermarket - 6 hours ago * Big Brother's Andrew gets drunk and throws up stv.tv - 22 hours ago * More coverage (1) »
Add News to your iGoogle Homepage Add News to your Google Homepage The Press Association
Fact is they should never have let the koonts decide in the first place, and no doubt realise this now
Yep, I suppose it's a decent choiceCould be the end of JJ1Fact is they should never have let the koonts decide in the first place, and no doubt realise this now
if you were going in at this stage you may as well be a right little fu cker and get as much airtime as possible..if he goes in and is all nice...im going to bang my head against the wall
if you were going in at this stage you may as well be a right little fu cker and get as much airtime as possible..if he goes in and is all nice...im going to bang my head against the wall