When Sarah's new boyfriend Chad Johnson asked Sarah if she'd heard of Fifth Harmony in the Celebrity Big Brother house, she replied "Um, yes, those slutty ones? Yeah."
Chad replied: "Are they slutty?"
Sarah responded: "Yeah. They all wear next to nothing - all the girl bands do these days. Slutty, slutty, slutty. Sex sells, sex sells..."
She then spoke about Girls Aloud, saying, "Obviously, when we were touring we didn't wear much because it was so hot, but it's when they do the videos it's all, like, slut drops and twerking.
"We used to have to do proper dance routines. They just do slut drops now."
In perfect timing with Sarah's comments, Nicola posted a photo of herself on Instagram wearing a cap with the words, 'Women in music are dangerously underestimated',along with the caption, 'And that's why we have to support each other. ✊🏻✊🏼✊🏽✊🏾✊🏿
Despite this, on last night’s show, Sarah said she was missing the girls.
"I'm such a fun-loving person when I'm on form and with the right people around me but I'm also really sensitive and my confidence was severely knocked over the last five or six years since the band ended.
"Nobody really tells you what to do when you've been up there for a majority of years…
"I do miss them... I do miss them - but we are all grown up now."
Girls Aloud last performed together on their 'Ten: The Hits Tour' back in 2013, after announcing they would be splitting up to focus on their solo careers.
Girls Aloud
Despite the Celebrity Big Brother crowd shouting "Get Sarah out" during Tuesday night's live eviction, Sarah will be hoping her fan following will help her be crowned the winner of the show in tonight's final.
The Celebrity Big Brother final takes place tonight on Channel 5.
Check out all of the other winners of CBB in our gallery below:
Jack Dee: 2001
Jack Dee took part in the show for Comic Relief and everyone seemed surprised, none more so than Jack. The series lasted a paltry five days as it was a more innocent time.
Nicola Roberts refuses to support Sarah Harding after her CBB antics
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Ryan Thomas: 2018
Former Corrie star Ryan Thomas was the final ever winner of CBB, despite MAJOR controversy in his series involving Roxanne Pallet.
Jack Dee: 2001
Jack Dee took part in the show for Comic Relief and everyone seemed surprised, none more so than Jack. The series lasted a paltry five days as it was a more innocent time.
Mark Owen: 2002
The nation fell in love with Mark Owen all over again when he took part while Take That were on hiatus.
Bez: 2005
Happy Mondays dancer Bez made no bones about taking part in the show because he needed the money. During his triumphant series he struck up an unlikely friendship with Jackie Stallone. Yes, really.
The nation rolled its eye when Shilpa Shetty claimed she was as big as Angelina Jolie. But her grace and dignity in the face of Jade Goody's bullying saw her crowned CBB winner.
Ulrika Johnson: 2009
Ulrika-ka-ka-ka-ka Johnson had stiff competition from Terry Christian, Tina Malone and Mutya Buena but, following a grumpy time in the house, eventually triumphed.
Alex Reid: 2010
Alex Reid was pretty much a twinkle in Katie Price's eye when he entered CBB. He became husband number two shortly after his win.
Paddy Doherty: 2011
Paddy Doherty winning CBB was not the nation's finest hour.
Denise Welch: 2012
Denise Welch took on disgraced X Factor singer Frankie Cocozza, former Towie Kirk Norcross and EastEnders favourite Natalie Cassidy and WON.
Julian Clary: 2012
Well of course Julian Clary won. The man's a national treasure! Mind you, he had stiff competition from Coleen Nolan and Martin (really, Martin? ) Kemp.
Charlotte Crosby: 2013
Charlotte Crosby was the first Geordie Shore cast mate to enter Celebrity Big Brother and she set the bar very high.
Rylan Clark-Neal: 2013
Rylan Clark-Neal was an utter delight during his time in the Borehamwood Bungalow. He now presents Bit On The Side, which is an impressive career trajectory.
Gary Busey: 2014
Gary Busey's time on Celebrity Big Brother was...odd. Still, hats off. he won.
Jim Davison: 2014
HOW DID THIS HAPPEN?
Katie Price: 2015
Somehow, Katie Hopkins was Katie Price's closest rival for the CBB crown. Thank goodness, the right Katie won. She's denied she's going into the house in 2018 which is a crying shame.
James Hill: 2015
James Hill, anyone? ANYONE? Thought not.
Scotty T: 2016
Scotty T was pitted against Gemma Collins, Megan McKenna, Stephanie Davis and Jeremy McConnell and came out triumphant. His finest hour? Possibly.
Stephen Bear 2016
Bear had an interesting time in the CBB house and a very rude time with Chloe Khan in the CBB toilet. He was up for every single eviction but beat them all and won the show.
Coleen Nolan: 2017
Coleen Nolan did TWO stints in the CBB house, first taking part in 2012. She beat Jedward and won this time around.
Sarah Harding: 2017
Sarah Harding enjoyed a relationship with Chad Johnson during their time in CBB. Alas, things didn't work in the outside world. The former Girls Aloud singer sadly passed away in 2021 after battling cancer.
Shane Jenek (Courtney Act): 2018
Shane Jenek AKA Courtney Act was the stand out star of winter 2018 Celebrity Big Brother, in part because they stood up to the bigoted remarks of house villain Anne Widdecombe.
Ryan Thomas: 2018
Former Corrie star Ryan Thomas was the final ever winner of CBB, despite MAJOR controversy in his series involving Roxanne Pallet.
Jack Dee: 2001
Jack Dee took part in the show for Comic Relief and everyone seemed surprised, none more so than Jack. The series lasted a paltry five days as it was a more innocent time.
Mark Owen: 2002
The nation fell in love with Mark Owen all over again when he took part while Take That were on hiatus.
Bez: 2005
Happy Mondays dancer Bez made no bones about taking part in the show because he needed the money. During his triumphant series he struck up an unlikely friendship with Jackie Stallone. Yes, really.
The nation rolled its eye when Shilpa Shetty claimed she was as big as Angelina Jolie. But her grace and dignity in the face of Jade Goody's bullying saw her crowned CBB winner.
Ulrika Johnson: 2009
Ulrika-ka-ka-ka-ka Johnson had stiff competition from Terry Christian, Tina Malone and Mutya Buena but, following a grumpy time in the house, eventually triumphed.
Alex Reid: 2010
Alex Reid was pretty much a twinkle in Katie Price's eye when he entered CBB. He became husband number two shortly after his win.
Paddy Doherty: 2011
Paddy Doherty winning CBB was not the nation's finest hour.
Denise Welch: 2012
Denise Welch took on disgraced X Factor singer Frankie Cocozza, former Towie Kirk Norcross and EastEnders favourite Natalie Cassidy and WON.
Julian Clary: 2012
Well of course Julian Clary won. The man's a national treasure! Mind you, he had stiff competition from Coleen Nolan and Martin (really, Martin? ) Kemp.
Charlotte Crosby: 2013
Charlotte Crosby was the first Geordie Shore cast mate to enter Celebrity Big Brother and she set the bar very high.
Rylan Clark-Neal: 2013
Rylan Clark-Neal was an utter delight during his time in the Borehamwood Bungalow. He now presents Bit On The Side, which is an impressive career trajectory.
Gary Busey: 2014
Gary Busey's time on Celebrity Big Brother was...odd. Still, hats off. he won.
Jim Davison: 2014
HOW DID THIS HAPPEN?
Katie Price: 2015
Somehow, Katie Hopkins was Katie Price's closest rival for the CBB crown. Thank goodness, the right Katie won. She's denied she's going into the house in 2018 which is a crying shame.
James Hill: 2015
James Hill, anyone? ANYONE? Thought not.
Scotty T: 2016
Scotty T was pitted against Gemma Collins, Megan McKenna, Stephanie Davis and Jeremy McConnell and came out triumphant. His finest hour? Possibly.
Stephen Bear 2016
Bear had an interesting time in the CBB house and a very rude time with Chloe Khan in the CBB toilet. He was up for every single eviction but beat them all and won the show.
Coleen Nolan: 2017
Coleen Nolan did TWO stints in the CBB house, first taking part in 2012. She beat Jedward and won this time around.
Sarah Harding: 2017
Sarah Harding enjoyed a relationship with Chad Johnson during their time in CBB. Alas, things didn't work in the outside world. The former Girls Aloud singer sadly passed away in 2021 after battling cancer.
Shane Jenek (Courtney Act): 2018
Shane Jenek AKA Courtney Act was the stand out star of winter 2018 Celebrity Big Brother, in part because they stood up to the bigoted remarks of house villain Anne Widdecombe.
Ryan Thomas: 2018
Former Corrie star Ryan Thomas was the final ever winner of CBB, despite MAJOR controversy in his series involving Roxanne Pallet.
