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 5 of 37 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Elbow Plank With Knee Drive Start in an elbow plank and bring your right knee into your nose; your pelvis will rise toward the ceiling. Place right foot back on the ground. Alternate sides, and bring your left knee into your nose. Place right foot back on the ground. This counts as one rep. Previous Next Start Slideshow Selena GomezFitness TipsWorkoutsCelebrity TrainersBodyweight ExercisesPlankAb Exercises