The singer has two Colt .45 pistols on the inside of her left arm she got tattooed at 22 against her parent's wishes.
"It's two Colt .45s and wings. I got it when I was 22, and it was the first thing I ever did without consulting my parents," she told the magazine. "I didn't ask them because I didn't want their answer."
Despite her tough girl image, Lambert knows young girls still look up to her and she does her best to promote a healthy body image.
"When a girl comes up to me after a show and says, 'Thank you for being normal,' that's when I feel like I've done my job," said Lambert.
The singer, who recently lost an estimated 45 pounds, admitted she spent her "20s on a roller coaster" with her "yo-yo weight." She decided to lose the weight once and for all before her 30 birthday this past November. "I just wanted to get healthier and go into my 30s in the best shape I could be in," she told People.
Lambert released her fifth studio album "Platinum" on June 4.