Kelly Rowland opened up about one of the biggest mistakes she ever made.

Rowland was on the Yeah, I [Effed] That Up podcast, where she recalled a time when she made a major Beyonce-related blunder. She says, “When I made the mistake and told the sex of [Beyonce]’s baby when she was pregnant with Blue… That was the worst moment ever. The worst moment ever.”

She went on to say she didn’t even realize what she had done at first, but that she “felt bad because it was no one’s business”, accidentally letting the pronoun “she” slip out when, as Kelly says, “It wasn’t my news to share.”