Popsugar Health & Fitness Fitness Tips Selena Gomez Ab Workout This Is Exactly How Selena Gomez's Trainer Likes to Sculpt Abs 22 April 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 Fitness TipsBodyweight ExercisesCelebrity TrainersPlankWorkoutsAb ExercisesPopsugar InterviewsSelena Gomez