Grandma Tina Knowles has the deets on Beyonce and Jay-Z’s baby. But she’s not telling!

Life & Style magazine caught up with Miss Tina at last night’s Angel Ball honoring Naomi Campbell for her charity work.

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“Yea they know what they’re having. But I’m not telling,” she said. The proud grandmother did reveal that Beyonce is over morning sickness and is now craving food!

“She went through [morning sickness], but she’s got past it now. She’s doing really good. She’s busy. She’s craving waffles. The normal — just wanting to eat,” she said.

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There’s no doubt Beyonce will be a great mom — but will she be able to balance her career and new baby? Momma Knowles says, “She’s going to be an awesome mom. I think it will slow her down somewhat, but I think she’ll be the same great person she’s been.”

We bet Miss Tina can’t wait to get her hands on another grand baby! Whatever the sex of the baby — it’s going to be born into a family of enormous love.