Olivia (@olivialanemusic) and her trainer Katie Barnes (@katiebarnesfitness) discuss some ways people go wrong in their workouts and how fitness should supplement your life, not stress you out. Ever seen Gwen Stefani’s perfect abs? Katie is responsible for bouncing Gwen back after her pregnancy, plus Katie has worked with several celebrities over her career. Katie is a go-to trainer to help you achieve all your fitness goals.