Mariah Carey says she is not worried about ageing because she never thinks about it.

The 45-year-old singer insisted she isn't worried about getting older because she just doesn't acknowledge her age.

She told PEOPLE: ''I think I have to remain eternally oblivious to age. Honestly, when you put a number on it yourself, it's just like, Why? Why do that?'' Mariah also revealed that a ''good hair and makeup team'' help her to feel beautiful but insisted she is quite low-key when she isn't working. She said: ''If you're not wearing a lot of makeup, you don't have to take a lot of it off.

So, my goal is to wear the least amount of makeup possible so I don't have to steam my face and take it all off. ''I do [have bad hair days], and then I have to apply my 500 hours of beauty school.

If it's really bad, I'll just slick it back and put it in a bun. ''When I was growing up I used to go into the girl's bathroom and fix the front with a brush on a hand dryer because it would come up.

And the back was never smooth cause I couldn't really reach it. So, I try not to blow dry my own hair. If I have to do my hair from scratch, I'll keep it natural.''