Kelly Rowland, a close friend of Beyonce’s and a former member of their all-girl group Destiny’s Child, may have inadvertently let slip the gender of the baby the superstar singer is famously carrying.

“I have no idea what I’m going to buy Beyonce at the baby shower because [her husband Jay-Z] is going to buy that little girl every single thing possible. She won’t be spoiled but she will be very well looked-after,” Rowland told the UK’s BANG Showbiz on Thursday.

The 30-year-old Rowland, who’s currently a judge on ‘The X Factor UK,’ added she’ll “be on hand for babysitting duties” and that she’s “actually very good with messy diapers!”

“I’m so happy for my sister and her husband,” she said. “They’re so happy in this moment right now, as they should be. They’ve made a little bundle of love, I’m so excited for them.”