Big Brother's Rachel and Rebecca devastated after being excluded from treadmill task

Further drama then followed when a finger injury forced Rachel to pull out of the task on the orders of the Big Brother doctor.

The Big brother housemates had teamed up yesterday for a new shopping task in their latest efforts to win a luxury food budget.

The brief was to recreate the music video for Here it goes again by OK Go, most famous for being imitated in an ad for energy supplement Berocca (see links below).

The video features the band members taking part in a high-energy dance routine on treadmills.

Rebecca, left, sulks as housemates deem her too unfit to participate in the task. Later Rachel shed tears when a finger injury forced her to drop out

The housemates were instructed to divide the group into four dancers, one choreographer, one hair and  make up stylist and one fashion stylist.

There was little argument that Dennis should be the choreographer, having been one before he entered the house, however the choice of dancers posed more of a problem.

Initial problems unfolded when Rebecca, who was keen to be allocated a dancer part, was deemed her not fit enough to take part by fellow housemates Luke and Mario, instead choosing Rachel, Dale, Stuart and Sylvia.

The housemates watch the dance video that they will have to perform.

'It's not fair,' she said. 'It's always the same people. As soon as I said I wanted to do it, people said no. I said it was easy and no one gave me a chance.'

She even went so far as to later tell Luke she hopes the group fail the task - and get stuck with a minimum budget.

'Don't say that!" Luke responded. "No one wants rice and chickpeas.'

Mario backed the group's decision. 'She can't even get out of bed. This is so important, you've got to be fit for this.' he said.

The group then settled on Jennifer as the costume stylist and Lisa as hair and make up stylist. The remaining housemates were excluded from the task.

Choreographer Dennis puts dancers Sylvia, Dale, Stuart and Rachel through their paces

The groups problems escalated later when Rachel, who had sustained a finger injury, was forced to pull out of the task on the orders of the Big Brother doctor.

'I'm gutted, I really am. I'm gutted because I really enjoyed it and if I had my way I would be doing it, but I'm not going to argue.' she said.

Dennis shows the group how it's done

Chef Rex who had not been included in the task has volunteered to stand in at the last minute.

The housemates are due to perform the routine live on Big Brother's Little Brother today. If they make more than three 'significant' mistakes they fail the task and will receive a basic food budget.