Justine Smith is a fitness instructor and stand up comedian living on the Big Island of Hawaii. She teaches, and has taught, Indoor Cycling, Zumba Fitness, Les Mills RPM, Les Mills BodyCombat, Body Sculpting, Aqua Fitness, and Yoga. In addition to teaching, she also performs and produces monthly comedy shows through her company Dirty Girl Comedy, as well as being a traveling comic. Her current claim to fame was teaching Reese Witherspoon her first Zumba class on Big Island in 2013.