United Kingdom, Aug. 6 -- Beyonce begs her mom to stop posting "too much" on social media.

The 43-year-old superstar has been joined on her Cowboy Carter world tour by daughters Blue, 13, and eight-year-old Rumi, and her proud mother Tina Knowles can't help but share photos and videos of the family moments online, despite the Crazy in Love singer - who also has Rumi's twin, son Sir, with husband Jay-Z - asking her not to do so.

Speaking to Kate and Oliver Hudson on their Sibling Revelry podcast, Tina said: "I'm still crying. I'm still like, 'I can't believe this.'

"I'm screaming louder than anybody when Blue and Rumi me come out, not as much for me, but for them...

"I'm the biggest cheerleader. I post 25 videos, and then I get a call,...