Tina Knowles Lawson on Beyoncé, Solange, Kelly Rowland and niece Angie.

The fashion designer and businesswoman is mother to Beyoncé, 33, and Solange Knowles, 28. She was married to their father Matthew Knowles for 31 years but the couple divorced in 2011 after it emerged that Matthew had an affair and fathered a child with actress Alexsandra White. Tina, 61, tied the knot with actor Richard Lawson, 68, in April this year. The above picture is from the ceremony.

On her support system

"I gave birth to two of you, but I have four incredible daughters.

"When I’m feeling sad or not-so-cute or maybe a little sorry for myself, and you all include me in your group chat and tell me how hot I still look or how cool I am. Maybe you send me a crazy YouTube video. What actually works best is a cute photo of my grandchildren.

"I remember slumber parties after my divorce, when we watched old movies and ate a lot of ice cream. I felt so loved and supported. The roles were reversed, and it was ME who needed nurturing."

On what the world doesn't realise about Beyoncé

"Beyoncé, I wish people could see how you are when you’re not in front of the camera or on the stage. How compassionate and kind you are to people, how you look them right in the eye when you speak to them. How hard you work, how generous you are with your time and money. How you don’t care if anyone knows about it because you do it from the heart....Yes, you are a huge star, but you have somehow managed to stay grounded and humble in the wake of all your success."

On why she admires Solange

"Solange, I knew when you were born three days late that you would walk to the beat of your own drum. You were always my rebel warrior! Always defending the underdog and fighting for what you believe in. I remember you, at 10 years old, started a petition to remove a bad teacher, and your dad and I were so proud of you. I love that you do not let others define who you are, or what you are. Whether in your music, fashion or your life, you truly are your own incredible, unapologetic person!"

On her most treasured memory

"I’m often asked, what was my most proud moment? I would have to say it was at my recent wedding, when all four of you said in your own words that I taught by example and that I helped to make you the women you are today!!!! That was truly my proudest moment!"

Victoria Beckham, Tina Knowles and Sharon Osbourne pen candid letters to their children