How Lisa Marie Presley Slimmed Down to Her 'Teenage Weight'

When rock royalty Lisa Marie Presley needed inspiration to lose weight and have a healthier lifestyle, she didn’t need to look far. READ: 10 Things You Didn't Know About Elvis Presley “Knowing my family history–my father’s side is totally not healthy and they have shorter life spans, while my mom’s side is super fit with long life spans -- I didn’t know where I would land,” the 46-year-old singer-songwriter tells PEOPLE Magazine. READ: 10 Tips And Tricks For Getting In Shape Now Her father, the late Elvis Presley, passed away at age 42 in 1977 from cardiac arrhythmia, an irregular heartbeat that may have been brought on from obesity and a weak heart. The publication reports that after years of fad dieting, Presley made health a priority in 2012 when she began touring, prompting her to become more disciplined about her eating habits. Not only did she find a plan that works for her, but the results already show. “I’m at the weight I was at when I was a teenager,” she reveals. “I love the way clothes fit me now. PHOTOS: Miranda Lambert's Amazing Body Transformation What’s the secret to Presley’s weight loss? She tells PEOPLE her diet consists of eating clean and organic. Presley prefers fresh veggies, chicken, fish, nuts, fruits and almond milk, as well as freshly made juices. In addition, Presley practices portion control with everything she consumes throughout the day. “I eat half of what I am given, especially when I have carbs or grains,” she states. “I just had avocado with feta cheese on toast with some spinach. Last night I had vegetable chicken curry. I want the rice, obviously. I’ll have a fistful.” But eating healthier wasn’t the only thing that made this artist shed pounds quickly. While touring makes it difficult for her to exercise every day, she tries to squeeze in a quick workout session whenever possible. Presley says she prefers walking 30 minutes every other day, along with lifting light weights, usually with her husband of eight years, guitarist Michael Lockwood, for support. “I can’t always get off the bus and walk for 30 minutes,” she admits. “But the show is 90 minutes long and I’m constantly moving and my adrenaline is pumping, so I’m sure that is burning calories." READ: The Dirt on Eating 'Clean' Another way Presley breaks a sweat? Running after her 5-year-old fraternal twin daughters Harper and Finley. “The twins are with me on tour and are constantly on the go, so they keep me moving,” Presley says. “I do chase after them, but it’s not only that.” Daughter Riley, 24, and son Benjamin, 21, also keep her busy, she says, admitting that she's not immune to temptation. “I love Mexican food,” she tells PEOPLE. “So we have to watch that. I’ll have one chicken taco.” READ: How to Cheat on Your Diet (and Still Lose Weight) Check out Presley’s amazing body transformation for yourself below: