Lawrence, 24, who always stunned on the red carpet, said she she wasn't always into the glamour, reported People magazine.
"I hated dressing up for my first red carpets, because I never felt comfortable in these glamorous dresses.
"In Louisville, when I was a child, I inherited clothes from my two older brothers (Ben and Blaine) that I put together with things that my mother dug out of yard sales. I was a true tomboy," she said.
Lawrence is currently the face of high-end fashion brand Dior.