How do you sing a song like Mariah Carey's "All I want for Christmas"?

Question:

How do you sing a song like Mariah Carey's "All I want for Christmas"?

The notes are harddddd. I'd like to learn how to sing such songs.

Best Answer - Chosen by Asker: You'd have to practice and train your voice first. High pitch notes, refrain from eating spicy foods and no ice for a while, see her tips on her website about what she does to take her of her voice, I read what she does and she always has baby carrots and other things for her voice and stays away from what I've mentioned. Go to her website.