At the 2011 MTV Video Music Awards , Beyoncé revealed that she was pregnant with their first child and on January 7 , 2012 , she gave birth to their daughter , Blue Ivy Carter , at Lenox Hill Hospital in New York . On January 9 , 2012 , Jay-Z released " Glory " , a song dedicated to their child , on his social website LifeandTimes.com . The song detailed the couple 's pregnancy struggles , including a miscarriage Beyoncé suffered before becoming pregnant with their daughter . Because Blue 's cries were included at the end of the song and she was officially credited on the song as " B.I.C " , at two days old she became the youngest person ever to appear on a '' Billboard '' chart when " Glory " debuted on Hot R&B / Hip-Hop Songs at number 74 . On June 18 , 2017 , Beyoncé 's father Mathew Knowles confirmed that she had given birth to twins with Jay-Z , a daughter , Rumi , and a son , Sir
2011 MTV Video Music Awards
2011 MTV Video Music Awards
Jay-Z