The moment happened as the "Daydream" singer kicked-off her annual Christmas run in New York.
Mariah Carey and Beyoncé posed with their children backstage at New York's famed Beacon Theater Sunday for the “All I Want For Christmas” singer’s holiday concert.
Read: From Hillary Clinton to Megyn Kelly, Women Dominate List of 2016's Most Intriguing People
In the photo posted to Instagram Monday night, Beyoncé’s 4-year-old daughter, Blue Ivy, is seen holding a fan. Carey’s five-year-old twins, Moroccan and Monroe, wore matching red outfits.
In another photo, the chart toppers posed for a rare selfie.
Read: 4-Year-Old Blue Ivy Wears $11,000 Dress on VMAs Red Carpet
"I love you Beyoncé. Thank you sooooo much for coming out tonight," Carey gushed.
Carey kicked off her annual holiday residency at the Beacon Theater over the weekend. The “Heartbreaker” singer also announced she will be touring with Lionel Richie next year.