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.

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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.