The "X Factor" judge's husband posted a picture of a little girl with a message in both his native French and English, reported Daily Mirror.
"Out Of The mouth of children comes The Truth... Get informed before you get opinionated... (sic)," the message read.
Cheryl, 32, has begun formal legal proceedings by filing paperwork which cites "irreconcilable differences" between her and her second husband.
Her fans have been left gutted by news she is divorcing her husband of 18 months.