The mother-daughter duo performed a duet during a Christmas show in Toronto.

Mariah Careywelcomed daughter Monroe to the stage of her sold-out concert in Toronto for a Christmas duet.

Carey shares her twins with ex-husband Nick Cannon.

https://www.youtube.com/watch?v=zQCi1NFh_Zo&t=13s mariah carey sings holiday duet with daughter monroe. Credit: Youtube

Youtube

Carey’s duet with Monroe marked their first ever duet together, she said.

“We’ve been working on this one for a minute.”

The crowd erupted in cheers when the 11-year-old joined in.

Between the halfway mark of the performance, the two briefly harmonize whistle tones.

It comes after Carey lost a trademark dispute over the “Queen of Christmas” honorific last month.

Watch Carey duet with daughter Monroe above.