Jay Z, who is going to be a father to twins, was spotted on Monday arriving at the Ronald Reagan UCLA Medical Center in Los Angeles.
A close source to the couple told PEOPLE on Saturday that Beyoncé had given birth to twins, with her father, Mathew Knowles, spreading the news on Twitter.
Earlier in the day, Jay was seen at a Soul Cycle class in Beverly Hills. “He joined the class just as it started,” a witness told PEOPLE. “He seemed very cheerful with lots of energy. He kept up with the class perfectly. He seemed to enjoy his workout. When she was pregnant, Beyoncé would come to class with Jay Z. Today, a friend joined him instead.”
“They’re here! #beyonce #twins #jayz #happybirthday,” he wrote, with a photo of balloons that were signed, “love, granddad.”
The Lemonade songstress, 35, husband Jay-Z made the announcement public in February after Beyoncé posted a maternity photo to her Instagram account.
“We would like to share our love and happiness. We have been blessed two times over.” Beyoncé wrote alongside the snap, which showed her posing in a burgundy bra, sky blue panties and green veil amid a floral backdrop.
“We are incredibly grateful that our family will be growing by two, and we thank you for your well wishes. – The Carters.” the Grammy winner added.
Moreover, Beyoncé celebrated becoming a mum for the second time in late May, surrounded by family and friends — including mum Tina Knowles Lawson, La La Anthony, pregnant Serena Williams and Bey’s former Destiny’s Child bandmates Kelly Rowland and Michelle Williams — at a fun-filled “Carter Push Party.”
She covered her baby bump in henna and was dancing with her family and friends.
“She’s holding it down for so many other women that are with child and showing them, okay, still be as fierce as you feel and as you can because some women do have a hard time and don’t feel as great all the time.” Williams told reporters at April’s Inaugural Wearable Art Gala.