Beyonce, Jay Z welcomed twins last Monday, babies still in the hospital

Meanwhile, the “Formation” singer’s father Mathew Knowles took to social media to confirm reports of his grandchildren’s birth.Beyoncé Knowles and Shawn “Jay Z” Carter have welcomed twins in one of the most highly anticipated celebrity births, according to multiple reports Sunday.”They’re here! #beyonce #twins #jayz #happybirthday”, he wrote, alongside a photo of balloons that wished the newborns a happy birthday. She is the mother, after all.But with no official word from Beyoncé or husband Jay-Z, there is still some doubt whether or not the twins have even been born. TMZ reported that Beyonce actually gave birth last week, but a “minor issue” has kept them in the hospital. Better keep a sharp eye on Instagram for the next few days.ET has reached out to reps for Beyonce and Jay Z for comment.We first heard the crazy-exciting news that Beyoncé and Jay were expecting their babies back in February.The power couple already shares 5-year-old daughter Blue Ivy. “I’m so excited. I can’t wait”, she said.”We are happy to announce the arrival of our lovely daughter, Blue Ivy Carter, born on Saturday, January 7, 2012, ” the couple said in a statement to People magazine the Monday after her birth.The iconic image showed a kneeling Yonce, wearing shorts and a green veil and surrounded by flowers, cradling her stomach.On doctor’s orders, Beyoncé was forced to pull out of her Coachella headlining set and reschedule for 2018. “We have been blessed two times over”, she said.She announced her pregnancy with an immediately iconic Instagram post showing off her baby bump, which she subtly revealed was home to not one but two new humans.