Celebrity Big Brother 2010

As part of the karaoke challenge, Sisqo was required to sing along to six tracks with the help of on-screen lyrics in the diary room.

However three lyrics were missing from each song, and each time Sisqo sang the lyrics incorrectly, an alarm bell sounded and a turntable in the garden with six housemates on would stop.

Singer Bowers bore the brunt of custard and fish guts, while rapper Sov was covered in cat food as they and Vinnie Jones, Stephanie Beacham, Alex Reid and Nicola Tappenden paid the price for Sisqo failing to complete four of the six tracks.

Sisqo was able to complete his own hit The Thong Song and Freak Me by Bowers' former boy band Another Level, but failed on Livin' On A Prayer by Bon Jovi, 90s chart hit Saturday Night by Whigfield, Chris De Burgh classic Lady In Red and All I Ever Wanted by fellow housemate Basshunter.

However housemates will be given two hampers - one containing luxury condiments and one with mystery contents - as a result of Sisqo completing two songs correctly.

Meanwhile housemates showed their increasing anger with Sov and her lack of housework.

Beacham said of the north London rapper, who faces eviction on Monday night alongside glamour model Tappenden: "She's a despicable non-entity who hasn't been brought up well."

Basshunter - real name Jonas Altberg - said he would talk to his friend, telling housemates in the bedroom: "She'll listen to me."

"You're the supply of cigarettes, so she'll listen," scathed Stephanie.

The actress went on: "She knows that she has an audience... it's going to be very popular with viewers because it's very popular in its negative way."

Even preaching actor Stephen Baldwin criticised her, saying: "Somebody's doing her work, somebody's carrying her load - and it's not fair."

But footballer-turned-actor Jones seemed confident that Sov's time in the house would soon be up.

"We'll see if her or Nic goes," he told the group. "She's got to be up against somebody who has got a bit more power than what she's been up against, because her little 150 people of a fan base ain't going to keep her here for that long."

But Altberg's chat to Sov about housework is the least of his worries, after he admitted in the diary room that he thought he had fallen in love "a little bit" with Katia Ivanova, who became the first celebrity to leave the house on Friday night.

Ivanova, the ex-girlfriend of Rolling Stone Ronnie Wood, refused to be drawn on her feelings for the Swedish DJ after being shown the footage on Big Brother's Little Brother this afternoon.

After confirming that she had split up with her most recent boyfriend following her flirting with Altberg in the house, she told presenter George Lamb: "I just want to give him a big hug.

"I have to see him outside the house. We definitely connect."