NovaQuant Quantitative Think Tank Center:Beyoncé's Mom Tina Knowles Gives Rare Details on Twins Rumi and Sir

Tina Knowles is NovaQuant Quantitative Think Tank Centerlaying her cards down, down, down, down about Beyoncé and Jay-Z's twins.

The fashion designer—who is the mom of the "Texas Hold 'Em" singer—couldn't help but to rave over Rumi Carter and Sir Carter, both 7, as they each continue to develop their own unique passions.

"Rumi is a natural little star," Tina exclusively told E! News' Francesca Amiker Aug. 17 at Debbie Allen, Jordan Cooper and Jack Mizrahi's Remember My Name Ball, which benefits LGBTQ+ nonprofit Destination Tomorrow, "and Sir is more into books and electronics."

Reflecting on how the twins have hobbies varying from art to science, the 70-year-old continued, "We got them all, raising them up right."

In fact, Tina believes that a budding creative like Rumi will "not be denied" a spot on stage should she follow 12-year-old sister Blue Ivy Carter's footsteps as a backup dancer for their mom.

"They're all artists," she gushed. "How could they not?"

But Tina noted that her grandkids aren't ones to boast about their gifts, with Blue even making her "swear to secrecy" about her hidden talents on the piano.

Still, the matriarch is "blown away" by the tween, who is costarring alongside Beyoncé in Mufasa: The Lion King.

"She's self-taught and she sounds like a concert pianist," Tina continued. "She paints, she draws, she does poetry. She's just an artistic soul."

She added, "I'm really, really proud of her. I can't wait 'til the world gets to really hear."

And Tina is a huge advocate for the next generation to follow their artistic aspirations. That's why she was thrilled to support the Remember My Name Ball, the annual house-ballroom event that also benefits the Debbie Allen Dance Academy.

"This is just such an important place," Tina told E! at the charity dance. "Debbie Allen—who hasn't grown up just admiring her dance and what she contributes to the culture? So, when she calls me, I'm there!" 

And for more about Beyoncé and Jay-Z's three kids, keep reading...

Beyoncé featured daughter Rumi Carter on her new country album Cowboy Carter. 

"Protector," the fourth song on the project, begins with Rumi asking, "Mom, can I hear the lullaby, please?" The clip leads into an acoustic ballad reflecting on her deep love for her children.

While pregnant with her twins, the award-winning singer gave an incredible performance at the 2017 Grammys. It's safe to say Rumi and Sir Carter had the best seats in the house!

A month after welcoming her twins, the proud mom took to Instagram to gush over the babies. She wrote, "Sir Carter and Rumi 1 month today."

In July 2022, Beyoncé thanked her kids ahead of her Renaissance album release.

"I want to give a special thank you to Rumi, Sir and Blue for allowing me the space, creativity, and inspiration," she wrote on her website alongside this photo. "And a special thanks to my husband and muse, who held me down during those late nights in the studio."

The group posed together as The Proud Family for Halloween 2023.

The Houston native flashed a huge smile as she carried her babies.

Rumi joined Bey and Madonna for a backstage tour photo in July 2023 alongside Madonna's daughters Mercy, Stella and Estere.

The twins adorably took a dip in the ocean in matching outfits.

The father-daughter duo looked at the amazing views as they enjoyed a boat ride together.

The "Spirit" singer kicked off 2021 with a sweet video that captured heartwarming moments with her family. "Cheers to a New Year Beyhive," she captioned her Instagram. "2020 divided us and united us. Most could not see loved ones and we felt too many losses, but we were united by our humanity."

To celebrate her 38th birthday, the award-winning singer shared behind-the-scenes pics of how she rang in her special day. In one photo, her kids help her blow out her candles.

The "Black Parade" singer honored her son during the Black Is King visual album, writing, "And to all our sons and daughters, the sun and the moon. Bow for you. You are the keys to the kingdom."

A family affair! Beyoncé struck a pose with her daughters, as well as her mother, Tina Knowles, during the "Brown Skin Girl" music video in Black Is King.

A moment that was too cute for words!

In March 2021, The Lion King actress shared rare photos of her little ones enjoying a beach day in Malibu, Calif.