Popsugar Fitness Selena Gomez Selena Gomez Ab Workout This Is Exactly How Selena Gomez's Trainer Likes to Sculpt Abs May 10, 2018 by Dominique Michelle Astorino View On One Page Photo 6 of 37 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 Spider-Man Plank (aka Creepy Crawler) Start in plank and bring your left knee to your elbow; place left foot back on the ground. Alternate sides, bringing your right knee in to your elbow; place right foot back on the ground. This counts as one rep. Previous Next Start Slideshow Selena GomezFitness TipsWorkoutsCelebrity TrainersBodyweight ExercisesPlankAb Exercises