The 42-year-old singer is currently touring Down Under and Carey brought special guest Mariah Cini onto the stage at Sydney's Allphones Arena.
Cini's father Chris met the singer on her 1998 Australian tour and subsequently named his daughter after her, and Carey repaid him by treating the little girl to a turn on stage and dedicating her song 'Close My Eyes' to her, reported Daily Star online.
"Mariah Carey is truly a beautiful, genuine person. She's protective of her fans and she's not above herself at all. I knew when we were having a baby girl that she would be my Mariah Grace," Chris said.
"I'm so excited because I finally get to meet my namesake. I've always liked her, from when I was born, basically... Dad always said if she came back (to Australia) we'd go to visit her and I couldn't believe it. I know I'm one of the luckiest fans in Australia," Carey added.
