Katie Dunlop [1] of Love Sweat Fitness has a barre boot camp to challenge all your muscles! This workout includes signature barre moves with cardio moves like grand plié burpees. For an extra challenge, add a resistance band [2] and get ready to feel the burn!

If your fitness goals include a flatter belly and stronger core, you're going to need a solid plan, expert guidance, and a little outside motivation. Our 30 Days to a Flat Belly [3] plan has all three! This comprehensive workout plan will give you results you want without a pricey gym membership; you can do these workouts anywhere — and they're all 30 minutes or less.

Credits: On Katie: Avocado tights [4] and Adidas shoes [5]. On Anna: Spiritual Gangster top [6], Avocado tights [7] and Reebok shoes [8]. On Rachel: Alo Yoga outfit [9] and Adidas shoes [10]. Corkcicle water bottles [11]. Anna and Rachel's mats: Vagabond Goods [12]. Katie's mat: Yeti Yoga [13].