Tina Knowles is keeping the BeyHive on a need-to-know basis … and right now, nobody “needs” to know anything.

Beyoncé‘s mom got put on the spot during her “Today” appearance Tuesday morning about the highly anticipated “Act III” album — and she didn’t exactly spill tea … instead opting to keep the mystery shrouded.

Check out the clip … when asked point-blank for any hints, Tina laughed it off … playing coy with a classic dodge: “I could tell you, but I’d have to kill you.”

Yeah … she knows something — and no, she’s not saying it.

The interview was playful throughout … Al Rokerasked if Tina was aware of “Today” cohost Sheinelle Jones‘ love for Bey … shouting out her special Beyoncé Halloween costume. Tina said she reposted the look on Instagram and couldn’t wait to show her daughter … who apparently loved it.

For now, all eyes remain on “Act III,” the still-secret final chapter of Beyoncé’s trilogy … and if the pattern holds, Queen Bey’s about to tackle another genre and remind everyone who really runs the world.

Beyoncé kicked off her current era with “Renaissance” — a full-on dance-floor takeover that paid homage to House Music and the Black pioneers who built it — then flipped the script with “Cowboy Carter” … diving headfirst into country and rewriting the rules there, too.