It's no surprise that J Lo works hard for her body [1]. She seemingly glows from the inside out and looks fit AF. Today you get to sample a full-body workout from her trainer, David Kirsch [2]. Get ready for your muscles to shake and burn — it's intense. You can do this workout without equipment, but you can make it more challenging with gliders (or hand towels) and a set of light dumbbells. Press play and get ready to werk!

Credits: On Anna: Gottex Studio activewear outfit [3] and Athletic Propulsion Labs (APL) shoes [4]. On Rachel: Alo Yoga outfit [5] and Adidas shoes [6]. On David: Lululemon shorts [7]. Manduka mats [8]. Corkcicle bottles [9].