Get ready to sweat! This challenging workout from celeb trainer Kit Rich [1] mixes circuit training, cardio, and Pilates core exercises [2] and works every part of your body. You don't need equipment for this one, just a positive attitude! And Kit will definitely keep you motivated. Press play, and get ready to work!

Credits: On Anna: Spiritual Gangster top [3], Splendid tights [4], and Fabletics shoes [5]; On Kit: Gym Shark top [6], Marmot tights [7], and ASICS shoes [8]; On Cynthia: Alo Yoga top [9], Lululemon tights [10], and APL shoes [11]; Manduka mats [12]; Corkcicle bottles [13]