Beyoncé shared the stage with mom Tina Knowles during her Cowboy Carter Tour in Los Angeles on Thursday, May 1, praising Knowles' new memoir 'Matriarch'

Three generations shared the stage at Beyoncé's seond show in Los Angeles as she brought her mom, Tina Knowles, onstage to congratulate her on her book.

Beyoncé’s mother, businesswoman Tina Knowles, discussed her breast cancer diagnosis during an interview with “CBS Mornings” co-host Gayle King posted on Monday. Knowles, 71, said her physicians found two tumors in her left breast - one benign and the other with Stage 1 cancer - during a mammogram appointment last year.