And now Nadine Coyle has broken her silence about Sarah’s Big Brother experience.
Girls Aloud singer Sarah has had a rough time with the public and her fellow housemates, with her alleged boozy antics disturbing the peace.
It didn’t help that she hooked up with US hunk Chad Johnson while her “heartbroken” boyfriend watched on the outside.
The 35-year-old admitted she missed her former bandmates in the Diary Room and Nadine heard her loud and clear, rushing to her defence on Twitter.
“If I was there, no one would DARE utter a bad word to her!”
“If I was there, no one would DARE utter a bad word to her!” she tweeted.
Nadine – who now lives in America – also offered some “inside info” on Sarah’s complex personality
She added: “She is a very natural being.
“She dwells on of her feelings and acts on them. It is what makes her so unique. No filter was made for Sarah!
“Those of us who know and love her know that. The support from you guys will mean the world to her!”
Meanwhile, Sarah’s other bandmate Nicola Roberts has refused to speak about her CBB stint, only fuelling rumours that there’s bad blood between them.
Sarah is no longer in touch with with Cheryl, Nicola or Kimberley after the band went their separate ways in 2013.
On Wednesday night’s show Sarah admitted that she missed the foursome despite the rumoured drama between them.
However, Sarah did have a subtle swipe at Cheryl, implying she stage-managed her pregnancy and branded her “savvy”.
Tune into the Celebrity Big Brother final tonight at 9pm.