Tina Knowles is the doting grandmother of four grandchildren, Daniel Julez , 19, Blue Ivy Carter, 13, and twins Rumi and Sir Carter , eight. Some of her grandkids such as Blue and Rumi have happily joined their mother Beyoncé on stage during her tour and have willingly been more in the spotlight, however one has stayed more behind-the-scenes. Tina was honored at the Angel Ball Gala on October 27, and she exclusively shared with HELLO! whether or not her grandson Sir is interested in possibly joining Beyoncé on stage alongside his sisters. Recommended video You may also like Tina Knowles reveals if Sir will join sisters Rumi and Blue Ivy on a future Beyoncé tour

Tina revealed: "Sir is very laid back and not into the spotlight, so I don't know, but who knows? We'll s

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