Beyoncé and JAY-Z’s twins’ birth certificates have popped up online and we get a little bit more insight on how Sir and Rumi Carter came into the world last month.

According to the documents, which TMZ posted on their website, the twins were born at UCLA Medical Center on June 13 at 5:13AM. Rumi, who is a girl, arrived first and Sir, who is a boy, came shortly thereafter. Interestingly, the OB-GYN who helped delivered the twins is Dr. Paul Crane. According to TMZ, Dr. Crane is the same doctor who delivered Kim and Kourtney Kardashian’s five children as well as Rob and Blac Chyna’s baby daughter, Dream. Talk about strange bedfellows.

Queen Bey broke the internet last week when she posted a glamorous photo of herself holding the two infants in front of a lavish floral background. Sir and Rumi join their five-year-old sister, Blue Ivy, in adding to the Carter legacy.

Since the birth, Beyoncé has not been seen publicly. However, the singer's mother, Tina Knowles, says the twins are doing fine. "Oh, the kids are wonderful but the best thing is that you can give them back," Tina joked when asked about the babies.

Mike Coppola / John Sciulli / Al Bello, Getty Images