Beyoncé’s fatherMathew Knowleshas been diagnosed with breast cancer.

Knowles, 67, shared the news and opened up about living with the disease withGood Morning America’sMichael Strahanin an interview that will air on Wednesday.

In 2011, Knowles and Beyoncé’s motherTina Knowles-Lawsondivorced after 31 years of marriage. The former couple are also parents to singerSolange.

Knowles-Lawson has since married actorRichard Lawsonand Knowles is now married to Gena Charmaine Avery.

Knowles formerly worked as both Beyoncé, 38, and Solange’s managers as well as the manager ofDestiny’s Child.

Knowles' relationship with Beyoncébecame strainedin recent years, but it appears they are now on good terms.

Last month on Sept. 4, Knowleswished Beyoncé a happy 38th birthdayon Instagram with a sweet tribute on Instagram.

“It’s your birthday! I hope you party like it’s your birthday, @beyoncé! Love, Dad,” Knowles wrote alongside a video compilation of Beyoncé performing.

Mathew Knowles and daughter Beyoncé.Dave Hogan/Getty Images

Mathew Knowles, Beyonce

Beyoncé alsoshared heartwarming moments of her lifeon her birthday to her website.

One particularly cute image showed Beyoncé holding her twins —daughter Rumi and son Sir, now 2 — on Halloween last year, where she was dressed asLisa Bonet.

The twins (who each sat in one of their mama’s arms) wore matching colorful outfits for the snapshot, featuring straps in a green, yellow and red stripe pattern.

Frank Trapper/Corbis via Getty

Matthew Knowles, Beyonce, Solange

“Thank you from the depths of me for all my Birthday Loving,” the “Spirit” singer addressed her fansin a handwritten note, shown above the images. “I had an incredible B-day! I’m grateful for every breath. I thank GOD for all of my Blessings, my wins, and my Losses. I thank GOD for All of you!”

“I would have posted earlier But I had work to do. I gotta job BAAAABY. Here is your B at 37,” she continued, concluding with a hand-drawn heart and, “Love y’all.”

Beyoncé and her husbandJAY-Zare also parents to daughterBlue Ivy, 7.

source: people.com