People.com Celebrity Parents Beyoncé Wishes Her Twins Rumi and Sir a Happy 4th Birthday "What's better than 1 gift... 2," Beyoncé wrote on her website, wishing her twins Rumi and Sir a happy 4th birthday By Glenn Garner Glenn Garner Instagram Twitter Glenn Garner is a Weekends Writer/Reporter who works heavily with PEOPLE's Movies and TV verticals. Since graduating from Northern Arizona University with a dual major in journalism and photography he got his professional start at OUT Magazine The Advocate and Teen Vogue and he's since consistently kept his finger on the pulse of the LGBTQ community. His first book The Guncle Guide was released in 2020 and was featured on Katie Couric's list of 100 recommended books of the year." People Editorial Guidelines Published on June 13, 2021 07:48 PM Share Tweet Pin Email Beyoncé is celebrating her babies as they mark another trip around the sun. The 28-time Grammy Award winner, 39, wished twins Rumi and Sir Carter a happy 4th birthday Sunday on her website. "What's better than 1 gift... 2," Bey wrote on the homepage. "Happy birthday Rumi & Sir." She and husband JAY-Z, 51, who also share daughter Blue Ivy, 9, welcomed daughter Rumi and son Sir on June 13, 2017. "Rumi is our favorite poet, so it was for our daughter," Jay-Z explained their names later that year. "Sir was like, man, come out the gate. He carries himself like that. He just came out, like, Sir." Beyoncé Shares Mother-Daughter Selfie with Blue Ivy Plus Rare Photos of Twins Beyoncé described the "extremely difficult pregnancy" with her twins in her 2019 Netflix documentary Homecoming, revealing she developed preeclampsia. "My body went through more than I knew it could," she said, noting that it took a physical toll on her as she returned to work. Beyonce.com Beyoncé with twins Rumi and Sir. "I would dance and go off to the trailer and breastfeed the babies, the days I could I would bring the children," Beyoncé remembered. "I'm just trying to figure out how to balance being the mother of a 6-year-old and twins that need me and giving myself creativity. Physically, it was a lot to juggle. It's like, before I could rehearse 15 hours straight. I have children, I have a husband, I have to take care of my body." Ian West/PA Images via Getty Images The Black Is King artist also opened up about motherhood during an interview with Elle in December 2019. "I think the most stressful thing for me is balancing work and life," she said at the time. "Making sure I am present for my kids — dropping Blue off at school, taking Rumi and Sir to their activities, making time for date nights with my husband, and being home in time to have dinner with my family — all while running a company can be challenging." The mother of three recently gave all of her children a shoutout at the Grammy Awards in March as she became the most-awarded female artist with her best R&B performance for "Black Parade." She and Blue also won best music video for "Brown Skin Girl" that night, making it her eldest daughter's first Grammy. RELATED VIDEO: Destiny's Child Reunites! Michelle Williams Shares Audio of Her 'Group Chats' with Beyoncé and Kelly Rowland "It's such a magical night, thank you so much. I know my daughter is watching," Beyoncé said in her speech. "Two daughters and my son, they're all watching. Blue, congratulations, she won a Grammy tonight. I'm so proud of you and I'm so honored to be your mommy, all of your mommy's. Y'all are my babies, and I'm so proud of y'all. I love you so much, my rock."