Midway through the performance, the pop superstar quickly paused to wish her twins, Rumi — who joined her mother on stage — and Sir, a happy birthday. “Everybody say happy birthday, Rumi,” Bey told the obliging crowd, while 13-year-old Blue Ivy lovingly cupped her little sister’s chin.

In an adorable mom moment lighting up social media, Beyoncé stopped her Cowboy Carter concert in London to wish her twins Rumi and Sir’s 7th birthday with a sweet onstage tribute

Z’s youngest kids Rumi Carter and Sir Carter the spotlight during her Cowboy Carter tour stop in London June 12. See how the crowd marked her twins’ birthday.