In a video taken at their On the Run Tour II kickoff show on Wednesday in Cardiff, U.K., both musicians can be seen on a screen in all-white attire joined by 6-year-old daughter Blue Ivy and 11-month-old twins Rumi and Sir for what appeared to be a vow renewal ceremony.
The message “THIS IS REAL LOVE” is projected during the film at the concert as the power couple sings their 2009 duet “Young Forever.” In April, they celebrated their 10-year anniversary together.
Before Bey and Jay shared the footage of the ceremony, photos of the pair holding two babies was shared along with the words “LOVE IS UNIVERSAL” and “LOVE NEVER CHANGES.” The Bey Hive presumably thought the children are Rumi and Sir (who will celebrate their first birthday on June 13), however, the babies are not.
“At the end of the show the Carter babies were included in a family collage [however] the babies in the film clip at the beginning were not their children,” a source tells PEOPLE.
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Despite this, the stand-in babies had twitter is ablaze with excitement.
Fans first saw the twins one month after their birth, in a family portrait featuring the proud mom holding her babies and introducing them to the world.
The couple is famously private when it comes to their children, but in January, JAY-Z couldn’t help but rave about the newest additions to the Carter crew.
“We are in a beautiful time now because they are 7 months and they can’t move,” the 48-year-old rapper joked in an interview with CNN’s Van Jones. “They can just coo … they just coo and you don’t have to, ‘Wait, wait, wait, wait.’ ”
He continued, “You know, they’re not running anywhere yet. We are going to enjoy these couple of months until they start running, and then it’s over.”
RELATED VIDEO: JAY-Z Reveals Why He and Beyoncé Chose the Names Rumi and Sir for Their Twins
Beyoncé and JAY-Z announced the tour in March and early buzz led the couple to release nine new tour dates just a week after the original announcement. The tour now includes 15 European cities and 29 North American performances.
A source previously told PEOPLE the couple has brought along all three of their children, revealing, “It took a lot of work to make this [joint tour] happen. It’s the best choice for their family.”