The 29-year-old 'Blown Away' hitmaker, who is known for her tousled blonde locks said that she likes to use lots of extensions and hairspray to make her hair bigger so the rest of her looks even smaller, reported People magazine.
"The higher the hair, the closer to God. It makes me laugh, but it really is southern humour. We country folk, we like our big hair. I am certainly no exception. I just feel like... Maybe it makes the rest of me look smaller," Underwood said.
"I'm not sure of my reasoning, but that's the number-one thing I do, when someone fixes my hair, I put my fingers in it and make it look bigger," she added.
The Grammy-award winner said that her style has changed significantly since she found fame on 'American Idol'.
"'I still feel like the same person, but sometimes I'll look back at pictures of myself in college or in high school and I'll say, 'Oh my gosh, what was I thinking?! But I'm sure 10 to 15 years from now I'll look back to now and say, 'Why would I wear that?" she said.