Speaking to Attitude magazine, the 31-year-old Geordie popstar said Coyle was "full of s**t" after the Northern Irish lass tweeted that she'd had no part in the split and that she wanted the band to keep going. It's all getting a little bit catty, isn't it?
The X Factor judge told the magazine: "She's full of s**t. What do you want us to say? She's full of s**t."
"She was the one who wanted to make a solo record which is why we took the hiatus," Cheryl added.
"She shouldn't tell porkie pies. She should remember why we took the hiatus after seven years so she could go and...
But it doesn't stop there.
MORE: Cheryl wishes fans would get her name right
"Okay, so do you want us to tell the truth?" Cheryl continued. "She wasn't going to make another Girls Aloud record until she got a solo deal. I feel she held us to ransom and then made her solo record deal. It's the truth. She's saying that we broke the band up, so there you go."
We're guessing Cheryl and Nadine aren't exactly er, best of friends anymore then.
In other Mrs Fernandez-Versini news, she's been celebrating this weekend as she became the first British female to make five number one hit singles. Congrats!
LOVE CHERYL FERNANDEZ-VERSINI? You need to see her incredible hair evolution...