The 44-year-old 'We Belong Together' hitmaker said she cannot imagine her life without her fraternal twins, whom she welcomed with husband Nick Cannon in 2011, reported Contactmusic.
"I never thought I was going to have kids. I remember being a little girl and going, 'I don't think I'm going to have babies when I grow up'," Carey said.
"For a while I was probably convinced of that and I just realised things change and that's what happens...(The twins) give me a reason to live," she said.
"It's called 'Supernatural'. 'Dem babies' are on the song. And they were singing this one when they were just two years old," she said.