We love it when our favorite celebrity kids get together for a playdate!
Before Mariah Carey's annual Beacon Theatre Christmas show on Monday night, Beyoncé's daughter Blue Ivy Carter met the "All I Want for Christmas Is You" singer's twins, Moroccan and Monroe.
"Backstage at Christmas time with our beautiful children. @beyonce #christmas #family #love," Mariah captioned an Instagram photo of the group.
She also snagged a solo shot with Bey, writing, "I love you @beyonce thank you sooooo much for coming out tonight!"
Scroll down to see more photos of Beyoncé and Blue Ivy living it up!