1. Rihanna

"Cardio is the key. I have a personal trainer who travels with me if we have a big event coming up. I work out every day but I need a trainer to motivate me." - Aan ELLE

2. Kim Kardashian

"I'm really proud of my curves, and I hope all you curvy girls out there are embracing yours too! It's important to work out and be the best version of yourself that you can be, but never feel like you have to be the skinniest girl in the room to be the prettiest. Be confident in yourself and you'll shine!" - Aan Shape

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3. Cara Delevingne

"The thing is about being sexy, I think, no matter if you're in lingerie [or] if you're not, it's all about confidence in yourself. And I know that's hard, because I know everyone has insecurities, and everyone feels inadequate at certain times, but that's the thing: When men see a woman being confident, no matter what they're doing, it's a very amazing thing to see, and that's what I think brings sexiness for sure." - Aan She Knows

4. Kate Hudson

"Sometimes I'll just move around and dance around to kind of just sweat because I feel like I need to get things circulating. But I'm not hardcore about it. But my go-to's are Brazilian Butt Lifts—it's just really, really concentrating on your core and your butt—and Pilates." - Aan Harper's BAZAAR

5. Gigi Hadid

"I've always said, 'Eat clean to stay fit, have a burger to stay sane.'"

"When I walked into IMG, my one thing was like, 'I'll be fit. I've always been an athlete my whole life but there's one thing I will not do even if it means turning away a dream of mine and that is to be too thin.'" - Aan ELLE

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6. Jessica Biel

"For me, getting enough sleep, drinking lots of water, having a healthy diet and staying away from alcohol are musts. It's so boring, I know, but doing those things really helps." - Aan Marie Claire

7. Ashley Greene

"A lot of women like to be super tiny, but I don't want a child's body. I want a woman's body that is extremely fit. It's so much sexier." - Aan Shape

8. Khloé Kardashian

"My fitness journey will be a life-long journey. Fitness is not about being better than someone else... It's about being better than you used to be. I'm not where I want to be, and who knows if I ever will be. But I am healthier than ever, and due to my consistent workouts, I am slowly seeing results. Hi baby abs!! I see you!!! I hope to meet your other ab friends soon (yes, I'm talking to my muscles. I've never met most of them before)." - Aan People

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9. Lea Michele

"Working out for me is something I do when I feel like it. But it's really about feeling good and taking care of my body rather than having to fit into any sort of model or anything like that. I try to eat well, and everything I do is really just to make me feel my best." - Aan Shape

10. Michelle Obama

"For me, exercise is more than just physical—it's therapeutic." - aan The Huffington Post

11. Jennifer Lopez

"[I'm like] a fighter, going into the ring. I do my cardio and I do my workouts with the Tracy Anderson Method. Sometimes when I get home and I'm not feeling so great, I make myself go to the gym. Then I come home and take a shower, put on a great outfit, some makeup, tie my hair up, and I feel pepped up and great about myself." - Aan Marie Claire

12. Cameron Diaz

"Personally, I love the gym. I love being around people who are sweaty and pushing themsevles, who are all focused on the same goals. I love being in a group like that." - Aan Marie Claire

13. Chrissy Teigen

"I have to exercise in the morning. I remind myself how happy I feel afterward, and I never regret it. My favorite is the ballet-inspired barre class Physique 57." - Aan Cosmopolitan

14. Beyoncé

"I do a lot of things with little weights—like, I'll put on a song that I really like and I'll do [bicep curls with] 5-pound weights for the duration of the song and just try to burn out." - Aan SELF

Bron: Harper's BAZAAR