Mariah Carey didn't plan on having children.

The 'We Belong Together' hitmaker has confessed that from a very young age she never thought she'd become a mother, but now that she's had twins Moroccan and Monroe, 3, with husband Nick Cannon she can't imagine life without them.

Speaking to 'Entertainment Tonight Canada' she said: ''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'.

''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.''

The 44-year-old star has penned a track about her son and daughter - who are nicknamed Dem Babies - and their vocals even feature on the song on her upcoming album.

She explained: ''It's called 'Supernatural'. Dem babies are on the song. And they were singing this one when they were just two years old.

''Mainly it's Miss Monroe singing but Rocco is on there.''

Maria admits that she loves to write music that makes her happy and she likes to mix up genres depending on her mood.

She said: ''I still want to be able to do things that make me happy. If a mid-tempo record makes me happy and it's a bit of an old school, hip hop beat, then cool.''