Sandi Bogle gets a secret mission on Celebrity Big Brother 2017 tonight.
And it ends with her singing a Girls Aloud track with Sarah Harding.
In this evening's episode, Big Brother brings Sandi to the diary room for a secret mission.
Sandi is told by Big Brother that she must challenge her fellow housemates to a range of tasks, and be the best at each.
Tasks included trying to sing a higher note than Sarah which ended in them singing ‘Something Kinda Oooh ‘ by Girls Aloud, challenging Trisha to a ‘twerk-off’ and proving she is a better actor than Shaun.
She wins the task and is rewarded for her efforts.
Elsewhere in tonight's latest episode, Chad and Sarah give Karthik a make-over and tech him how to be popular.
After showing him what to wear, Chad declares: "You have officially impregnated every girl in the UK."
"WOW, this s**t is cool man," Karthik reacts to his new look.
"Now act cool dude!" Sarah encourages as she gives him more tips on how to "act cool"
Meanwhile, Paul is seen talking to Jemma and Sandi about his recent argument with Sarah; “I’m trying to work a thing in my life at the moment, where I have to try and forgive. It’s for me, it’s not for them.”
And later on, Trisha and Jemma are talking in the garden. Trisha claims Vampire are real.
Celebrity Big Brother 2017 airs tonight at 8:30PM on Channel 5.
It's the latest live eviction show with Trisha, Sarah, Karthik and Chad all up for eviction.
One of the four will be given the boot in the live show hosted by Emma Willis.