She added: "Then I got a call back saying it was now Something New and I was like, 'OK, let's do it'". "I thought we were going to do loads and loads of stuff", she said.
However, her former Girls Aloud bandmate Nadine Coyle has revealed in a wide-ranging new interview with The Sun that she tried in vain to get her friend to refuse to do "CBB", persuading her to come to Spain with her on holiday instead. She said: "We weren't trying to make it sound like Girls Aloud, we weren't trying to make it sound the opposite, it was just a blank canvas".
Go To Work is available to stream and download now, and is just the start of what Nadine has been hard at work on over the past few years.
Over the course of the reality show, Sarah spoke candidly about her relationship with Cheryl and how the star apparently "planned" her pregnancy. So in terms of people wanting their voice heard, that wasn't happening and it made people very, very bitter.
The 32-year-old singer has hinted the reason the girl group - who were formed on "Popstars: The Rivals" in 2002 - split in 2013 was because there was "always politics" amongst her and her bandmates Cheryl Tweedy, Sarah Harding, Nicola Roberts, and Kimberley Walsh and a "divide" over who wanted their voice to be heard.
"To be truthful, I didn't want to break up in the first place". I really, really wanted that to be, but it just wasn't how it was. "We're all very different characters".
She recently explained: "I feel excited because it's one of those really odd things where it's so out there, like oh my god, you shoot a video, you do photo shoots, you do all these things, it's such an exciting job".
But Nadine conceded: "She wanted to do it".
"Go To Work" sees Nadine team up with Brian Higgins (Xenomania), who was a key part of Girls Aloud's success. "It's exciting", she said.
" I'm up at, like, 6am... so I need a night out with her once there's a day off". It might be different to how everything would work and how it would all go.