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 9 of 37 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 9 Plank Jacks Begin in plank position with your feet together. Keep your upper body stable and engage your abs. Begin doing jumping jacks with your legs. Hop them wide, then hop them together. Jump as quickly as you want. Previous Next Start Slideshow Fitness TipsBodyweight ExercisesCelebrity TrainersPlankWorkoutsAb ExercisesPopsugar InterviewsSelena Gomez